"multiple systems malfunctioning"? That doesn't sound good. I'd try and get into another engine soon rather than later, TBHWY. Currently, what you have sounds like trouble waiting to happen. If you're talking about other systems malfunctioning, as well (brakes, electrical, etc), it might be time to start shopping for another rig, as chasing that stuff down can be a nightmare. Baptism by fire is never fun on any vehicle, and you don't want it to be a money pit.

I'm all about restoration projects and keeping them on the road, but if you don't have the time and wherewithal to do it, might be better to save yourself some headache. And don't take this as bias from someone who has a 2001 Kaiser for sale that's been rather bulletproof, take it from someone that has had to work on one that had so many issues it had to be sold to avoid financial ruin *lol*.