Mootspoints,

Hey dude, don't despair about your purchase. You came to the right place and for $2,000 even with some issues, you still got a more capable off-road vehicle than just about any jeep out there. We'll get you sorted.

You talked about the transmission overheating. Simple things, I'd check to make sure the transmission cooler isn't plugged up preventing flow. Also, could be the sensor is going bad. Do you have an infrared thermometer you can point at the transmission pan when it says it's overheating?

As far as the engine bogging down, I'd think fuel pump unless you are losing compression somehow.... Does it idle fine? Can you rev it in neutral and it not bog down?

If you haven't already, hop on over to mitsubishilinks.com and pick yourself up the factory service manual. We can go from there.

Also, expeditionportal.com has a mitsubishi forum, lots of members from here post over there regularly so.