C20 disc brakes swap

[Ultanium]

I have a 1970 C20 panel, a very rare bowtie, with no drivetrain (was 292/auto). A friend has an 86 C20, with aftermarket 8 lug rims, disc brakes, and a 454/TH400. Can I swap the entire crossmember, front suspension, wheels, and drive train into my panel, without too much hacking? I read one post that says it bolts right in, and another says the frame bolt holes are there, but you have to drill them out to a larger size with a stepper bit. Would the donor truck have the correct perches for that big block? I would also like to snag the tilt column from the donor truck, but I was told by a friend that it had a larger diameter tube, so I would have to hack up the dash. I appreciate any guidance here, after 30 years of owning and building Mopars, this is my first Chevy, and I don't want to screw it up. Thanks!

Tj

[lolife99]

Use your original 1970 crossmember, and swap in the a-arms and spindles from the '86.
Also use all the steering from the '86.

Everything really needs to be disassembled and inspected on your donor parts.
They are just as wore out as your 70 suspension.
It's a good time to rebuild and paint everything also.