I think the only special tools you would need would be cone wrenches and a freewheel puller for the hubs and a pin spanner, hook spanner, and crank puller for the bottom bracket, unless they were already using cartridges in 1990.
I take my freewheel hub wheels to a bike shop and ask them to pull the freewheel. There are too many different types of removers required-Shimano, Suntour, Maillard, etc.
The bottom bracket may be sealed so my oil trick wouldn't work.