Is the SR kit under dash or direct fit like the VA and CAA are?
My CAA kit is all behind the dash and came with a complete replacement evap/heat box that fits where the o/e heater box sat. Overall the CAA w@s a quality product other than the chintzy left and right air outlets.
Also my cable operated kit was the only one available at the time, the newer electric kits should be an easier install.
I think the 65-66 cars are stuck to using the hang below the dash kits and seem to be less expensive.
You have to do an “apple to apple” comparison and wonder what cuts they have to make the price cheaper.

I too went with Vintage Air. very clean install and I love the defrost mode up here in Oregon, takes about a minute to clear the entire windshield.  

Considerations:
Vintage Air uses combined heat/cool core and that loses some cooling efficiency. I have one in my 66, been in place 12 years with no problems, but I wish it blew colder air.  I finally compromised on Vintage for my 69 (currently on order) and for my 56 F100 which I have not installed yet.

The Classic Auto Air I looked at recently had separate coils but did not offer hose and condenser configuration for my 69’s passenger side compressor. I liked the CAA center vent design much better than what I am getting.

Whatever difference in price you shell out up front will be minimal if you wind up with one that does what you want it to do.

MS wrote:

Considerations:
Vintage Air uses combined heat/cool core and that loses some cooling efficiency. I have one in my 66, been in place 12 years with no problems, but I wish it blew colder air.  I finally compromised on Vintage for my 69 (currently on order) and for my 56 F100 which I have not installed yet.

The Classic Auto Air I looked at recently had separate coils but did not offer hose and condenser configuration for my 69’s passenger side compressor. I liked the CAA center vent design much better than what I am getting.

Whatever difference in price you shell out up front will be minimal if you wind up with one that does what you want it to do.

I think Bullet Bob had hoses made to fit his passenger side compresser and condenser line.

Bearing Bob wrote:

MS wrote:

Considerations:
Vintage Air uses combined heat/cool core and that loses some cooling efficiency. I have one in my 66, been in place 12 years with no problems, but I wish it blew colder air. I finally compromised on Vintage for my 69 (currently on order) and for my 56 F100 which I have not installed yet.

The Classic Auto Air I looked at recently had separate coils but did not offer hose and condenser configuration for my 69’s passenger side compressor. I liked the CAA center vent design much better than what I am getting.
Yup, I did a semi-custom system way back when I first put the car on the road using the original hang-on evaporator...I think JKB has it now...and I used a Sortden compressor and a 20" condenser from Nostalgic Air Parts.  They were very helpful and sold me the fittings and #6 and #10 hose as needed.  I cut the hose, clocked and marked the fittings to fit my setup and had them crimped locally.  Worked great with 134a.  Then when I re-did the car in 14 I moved up to the Vintage Air Gen IV evaporator and make up custom hoses to fit.  I've always had the compressor on the right because of the Standard 5.0 front dress from the 89 Lincoln TC.   I keep waiting for that NAP import Sanden knock-off compressor to crap out but it just keeps hanging in there.  My system blows 40 degree air and works fine for me.  Of course, I don't live in Hell and rarely travel there.

BB
Whatever difference in price you shell out up front will be minimal if you wind up with one that does what you want it to do.

I think Bullet Bob had hoses made to fit his passenger side compresser and condenser line.

Sent a message to them asking about the system. It is a combination coil like Vintage Air. Said they have been a good selling product for them for 20 years.
 

I went with CAA and the unit seems to work well to at least to 103F outside temp. Total pain to install and get all the hoses clear of moving wiper parts. The vents that came with the unit sucked large time so I purchased repro 1967 AC vents from WCCC for 1/2 price as they were listed as blems.