56 Axle Swap Question

[Kartch1]

Sooo......I have done enough searching that my head is spinning. I currently am building a 56 Chevy. I am going with the Camaro clip on the front. I am looking for an axle for the rear and am not finding any good 70-81 10 bolt axles. I'm looking at other options with the following in mind:

- I'm doing a rear four link so spring pad locations make no difference.
- I would like a five bolt pattern but it doesn't need to be 5x4.75 like front.
- I would like to not have to order custom rims to make up slack in back spacing.
- Need something fairly strong without completely breaking the bank.
- Would like something I can readily find in a salvage yard.
- Will be running a 10" wheel. Would rather not tub if I don't need to.
- Plan on running a 17" wheel or larger.
- Rear disc is nice but have no issues running drums.

I know this is a tall order but wanted to see if you all had any ideas or suggestions. I may just need to be patient on finding an appropriate 10 bolt but everything I've seen so far is in bad shape or stupid expensive. Thanks in advance.

I will start a build thread soon I promise!