Early 70's tow suburban

[Buckthetruck]

I have a mid 70's Airstream and I would really like to find an early 70's Suburban to tow it with. What all needs to be done to make these old suburbans good tow vehicles? I currently use my 99 Burb for daily and tow driving and wouldn't mind a vintage 70's to replace it. I am thinking I would want to update the seats with headrests for some safety reasons, but I really want to know what needs to be done to prepare it to tow a camper safely. I would want disc brakes on at least the front (like my curent one), any suspension things to do? Can newer truck parts bolt on to the older ones to fix any of the issues? Things like brakes, suspension, steering,...? Any input would be great, or a ready to go one would be even better.