Hi I just got in hold of a Tascam 488 which should have been in mint condition, but there are a few issues. One of them seems to be that the two long screws which should be in the cassette deck is missing. I discovered this when I wanted to open the unit to take a look inside. Any suggestions to where I can get a hold of some replacements screw. I saw a video on youtube which states these are important for good operation of the deck. There are also some issues with the tape playback speed. I hope this can be fixed with a new belt and a captstan motor. These seem to be available on Ebay. Also the headphone jack seems to have an unstable connection, but this could be fixed with some contact spray perhaps? The heads seem to be in great condition. Thanks for any input!