Welcome! I can address a few of your issues:
1. I have an oil leak below the cam cover not bad but 3 or 4 drops over night.
Probably the crank seal, easily replaced. Mine was done under warranty. A bit of a PITA to do yourself, but not impossible.
2. the speedometer reads 5 miles fast.
Search for the thread on how to re-program the spedo to be more accurate. Mine also was 5-over until I reset the front tire revs and it now reads dead-on accurate.