[damoose212001]

ehh, unless it's dirt cheap, I would wait. It seems on Mitsubishi's(well at least mine, and my friends Eclipse), with this mileage you're starting to look at suspension wear out problems, on top of what already may be wrong with it.
I'd say make sure you check the struts and strut mounts for one thing, as well as steering rack, ball joints, tie rods, etc. Now also, you say it has the lifter tick and you want to put the 99 lifters in, you might as well as do the head gaskets while you're doing a job that big, and they're near the end of their life i'm sure, and while you're in there, do the VSS, and while you're at that, do the timing, water pump etc it all adds up in there. Not to mention the condition of the turbo's. If the rear one is giving you any trouble at all, I would do that while doing everything in the upper end of the engine, just due to the fact it'd be much easier to get to. Now, that was only for making it run nice, move onto the paint. If you want the car to look nice, you're most likely going to need a good paint job on that thing, a good engine bay cleaning, and underbody cleaning, possible reupholster the seats, and if you want a wing on it, add another couple hundred there. Just giving you a heads up on the worst possible situation, but it's definitely not out of question, at least within a little while, that's what you're going to be looking at to do.