Sean, please don't take this the wrong way and i'm not saying it to be mean but it's for this very reason that I suggested previously to NOT take money with you when you went to look at the car. If you ever put a deposit down without any paperwork saying you WILL get it returned than you must figure it can be lost. Hard lesson I know
Good to hear that deal is off though, I think you would have regretted it in the long run.
BTW, unless it was put on custom afterwards by replacing the oilpan, you will not find a 365hp car with PS as it was not available with that motor - the oilpan is larger and there is no room to put PS on the car. The 365hp cars have a 6 qt pan where the 350, 300, and 250hp cars have a 5qt pan.
I have the 365hp motor in my car and to honest I wish I ended up buying the 350hp instead many times. The 300hp and 350hp cars have a bit more torque on the lower rpm range which makes it easier to drive on the street. The power on the 365hp motor doesn't really kick in until around 3500rpm's where the torque on the lower hp motors kicks in sooner.
If I was looking around for another stock motor midyear SB car I'd hold off for a 350hp car with PS (and A/C) but you won't find a factory A/C car in the 40k range unless it needs some work, especially on a vert. on a non-A/C car 40k is reasonable for a good car. It's a shame that you weren't looking 2-3 months ago as my friend just sold his '65 vert with 350hp motor and both tops, KO's, and side pipes, in excellent condition except for the paint with looked great at 10feet but up close showed a lot of spidering (common on older paints) for 37k. Only thing you would not have liked on his car was the color (which was actually one of my top choices in the running when I was looking). It was Glen Green w/ black leather interior. Yes, numbers matching too. The buyer got a great deal.