What can I use from an '87 G20 van?

[closer9]

Hey, guys...

Kinda new. Been a member a while looking for answers for a friend, but recently worked a deal with my dad to acquire my grandpa's old truck. It's a '64 LWB, SBW 283, 3-spd, 2WD... I think other than the ralley's and HEI it's all original... even has the underdash A/C. We'll be swapping in a freshly built 283 in a few weeks.

I have the full suspension, brakes and steering from an '87 Chevy G20 van (still attached to the "frame"). I would like to convert the '64 to power steering and brakes, but I know for sure the steering box is different. Dad says he has everything to mount the steering pump, including the pump. Just wondering if anyone is familiar with van parts. Just a quick glance and they appear to be the same...

Might also try to use the van gas tank to mount under the bed.

In the future I would like to go 4WD, but haven't had the chance to investigate this...

My goal is to have modern safety, but keep the original look.