The window is probably the motor pucks, almost broken completely, and the side guides need a little lubrication. If the window moves smoothly in the guides all the way, then it's probably the motor pucks. This old they all should be replaced, about $8 a motor at a parts store(HELP section).
The hatch lock cylinder, that might not be as easy as the other cylinders to correct. Normal key cylinders can have the tumblers changed to work with any key, locksmiths will do that on sight. If they can't do the rear one, ask first, then you might have to take it out and change that to one with a matching key. I bet they can, but it may take odd tumblers that they don't carry.
With my 99/93 truck, I used the 99 ignition and door cylinders, but had to have them re-keyed to match a 95-97 hatch lock cylinder I bought used. So I ended up with new keys, and made it all match the 1997 key I got with the hatch cylinder. A locksmith came to me and did the three cylinders for about $60 total, in 2006.