Damn you! I was going to post a thread for one or both of these cars as well. you beat me to it!
Both of these cars have been floating around auctions for at least a few weeks. I tried to do some digging, but I can't find very much information on Hartge's. From what I could find, it doesn't sound like they do anything to the interior
From the auction pics it looks like they at least did floor mats and maybe the steering wheel.
I don't know why, but Hartge's that come up at auctions always seem to be beat up. I have never seen a good clean one go through.
Being an auto I don't the the Alpina will be expensive. Probably something like 350,000 JPY.