I am replacing the cylinder on my 88 with a cylinder I purchased on eBay. The bore on the new cylinder is 88 mm. I found a Wossner piston that is 88 mm. I've never purchased a Wossner before, is there a good supplier that anyone uses? Does the Wossner come with the wrist pin, clips, and bearing or do I need to purchase that separately? I didn't see where they offered those parts, should I use someone else's? Also, where would I find a head gasket to work with that bore, or can I use the stock one? Thank you!