I was gonna suggest the /6 Forum store.
As in someone here off the forum
You can pick up a coolant reservoir the same way. I probably would.
What suspension work do you mean? If I had a ball joint or tie red with obvious play in them I'd definitely change them before I went. RA has idler arms, TRW brand, real cheap. And they (at least used to be) very good. TRW is what the factories used in the assembly line for lots of stuff.
I just bought 4 name brand old stock USA made tie rod ends and sleeves for my 83 via eBay real cheap. Lots to pick from. Same with center (drag) links, definitely helps to have part numbers to search. Definitely way cheaper and less likely to be chinamade from there.
Tie rods 2120R and 2121L. Center link DS804. One ball joint is a K7025, having a brain fart as I sit in Walmart parking lot waiting for the wife to come out... The rest are from my memory...
I certainly wouldn't want something coming apart on such a ride. At least check things over well and see what play might be detectable before going.
My 83 is down to a bare rolling frame right now and it's at the sand blaster. Every bit of that is being replaced when I get it back, before the body is put back on and painted.