i really think that will smoke your 15.2 as long as the basics are in check. the battery area is typically going to rust out first so take care of what you can to prevent further damage. as for seats, i have 4th gen cloth seats. driver is power and is torn in the usual spot. the others are nice just a couple stains here and there from age. i will find the thread with pics and throw up the link for you.
seat pics
take it to pm though if you are interested.