Is there any other rear that will work in my '65 barracuda??????

I just cant afford to purchase an A-body 8 3/4 rear for my car right now. And may not be able to for a long time. It just is not in the cards. I'm going to be trading off all of my AMC goodies just to get a motor and trans. My question is: Is there any other rear out there that will work in my '65 barracuda without having to have it cut down???? I know that there is someone on this site that has done something about this issue. If I had a Duster,Dart sport, or demon I could very easily just use a B-body rear. But I dont have that kind of car. I mean you hear about people making other kinds of rear ends work on all kinds of other cars. There has to be something that will work on our early A's. I have heard from a reliable source on here that any A series mopar truck/van rear is the same exact length. But I have not had anyone else confirm that. I'm going to hopefully getting my V8 real soon and the rear end is going to be just as important as a V8 radiator. I've thrashed 3 7 1/4 rears with just stock 318's. This motor is going to be a Non-stock 360 W/904. I've got to come up with something. I hope there is a cheaper solution. Please help me????????? Thanks.