Best donor for 360 into 72 Valiant 6cyl

New to the mopar world and have been trawling the internet for the best donor so ican get the engine trans, maybe rear end and any linkages etc needed. I have seen the custom engine mounts from schumacher and will probably get those. I think an 8 1/4 rear will suffice.

Thanks for any advice.

The best one is the one that's available for free! The second best is any one that is available at a price that you can afford, and if it comes in a complete donor car, so much the better! It's not so much that all the missing parts might cost you some cash; But it's; the hunting, the shipping, and the dog-gone waiting, and the frustration when something shows up that does not meet your expectation. That is just such a pain.