I made some more good progress today on the Cabrio. Managed to finally remove the 2 stubbornly-stuck ball joints. One needed to be sawzall'd and the other came loose after 10 minutes of banging with a pickle fork. Thankfully Advance Auto is right around the corner and they have free rental tools.
I did an oil/filter change and filled up the transmission with fresh fluid. Finished up the engine tune-up with new plugs, wires (blue for +5hp), air filter, ignition coil and distributor cap. I still need to do the fuel filter in the rear and the exhaust.
Some good news on the Hydraulic pump. I noticed the fluid level was quite a bit above max, and I'm pretty positive it's never been touched. I think the fluid has taken on water over the years as recommended above. I drained the fluid, put in some new Pentosin and the top is now working about 2x as fast. I don't think it's quite to stock speed yet, but it's a big improvement and overall it sounds like it's got more oomph.
Put on the new rotors and brake pads, and put on fresh seals and grease on the caliper carriers. Also finished up the passenger side suspension, tie-rods, etc. Pretty much done on that side with everything mechanical.
Drivers side I'm still stuck with the axle not coming free. It's disconnected, but there's nowhere near enough room to remove it from the car. Seems like a pretty major design flaw, but maybe I'm missing something?