I am looking to spend 20K to 23K on a used 4Runner. 2WD is fine/ Most I am seeing in the price range are '04 SR5's and there are a few '05s. From what I am seeing most of these are relatively low in options. I know I can add a sunroof and leather. IS there a reaonable way to add the 3rd row seat. If I want all this stuff, I realize I probably should just pony up the additional cash up. What do y'all think? How much will I likely spend to get 'the good stuff'? Is the 3rd row seat very usable? can anyone comment as to added leather or roof? Thanks.