Sam,
I think you'll find that everyone on this forum is very helpful, and you may be able to get by without the shop manual. WIS is only available on CD-ROM from MB. For the rare occasions when you really need it, you can access the same information online (for a fee, of course).
http://www.startekinfo.com/StarTek/
Regarding the oil leak, I had a similar problem. It's real easy to fix.
http://www.peachparts.com/shopforum/showthread.php?t=134529
http://www.peachparts.com/shopforum/showthread.php?t=141539