Well an automatic 3.0 is about as undesireable as you can get in terms of a toyota, but if you have big plans of swapping both the engine and the transmission then it sounds like a good deal for ya. I personally wouldnt take on a 3.0 because I have hated dealing with them in the past (my gf has a manual 3.0 and the only reason i can tolerate it is because it was owned by an old man, the second owner, and is in flawless condition), they just seem to have a lot of problems. Of course that isnt always the case but if you are looking for a project and not a realiable DD vehicle then go for it. If i was doing it i would swap it to a 3.4 and a manual, though 4.3s are pretty common swaps too so you have a lot of aftermarket options in that department. its really up to you, i dont know what the interior/exterior condition is like...
