That might be best, really. Given what I've found already there could be more surprises of past, er, let's say sloppiness. I would like to try some repairs myself,but having just bought it, a full inspection might be better.
...the cover that holds the SPICA injection pump filter takes a contour three hole paper gasketBe advised that there is a small oil filter on your SPICA injection pump.
3 small bolts holding a circular plate to the side of the pump.
Don't forget to change it periodically.