$50 Craigslist 360 EXTREME budget rebuild??

Supposed to be .020 over. Is said to have 35000 miles on rebuild but I don't think it was anything super major it did get bored obviously and it had an upgraded cam but that's something I want to take out and take a look at and measure just so I know if anything what it is. Want to reseal everything but I don't want to pull the Pistons out and unseat them. But I do want to put my windage tray on and also I would like to put main seal and get it nice and tight obviously it needs a couple other things too but it looks like tomorrow I'll just be continuing cleaning like I was before.