This may or may not be of some help because I have a '70 and not a '65. I have an aluminum staggered inlet/outlet radiator and am using the Vintage Air front runner on a 427 Windsor (actually a Dart block). The top hose is from NAPA # 8643 and the bottom is a Gates #21236. I think I had to shorten one if not both hoses to get the best fit. I don't remember the tube sizes but that should be easy to find out. Hope this helps.
Here's a pic of my installation.

 

I think I'm g going to start with your hoses. I did a little parts kung fu and found the Gates and NAPA parts for each hose you are using (in case you want to get them matching or from the same place). I found the Gates hoses on Rock Auto for less than NAPA has them for. Anyway, here you go.

Upper: NAPA #8643 = Gates #21953 (typical 60's Ford top hose)
Lower: Gates #21236 = NAPA #7947 (1980+ Bronco, F Series truck)

 

I suppose it's a start. I'm running staggered tubes as well but the radiator has the stock dimensions.