Got the rest of the motor stripped tonight, its not completely in pieces but enough to let me see what's occuring. The head came off easy, needed to buy a huge allen key socket to get the head bolts off though. The cylinder walls aren't really scorn (pics) so I hopefully I don't need a rebore and new pstons. Took the sump off after that and lots of shavings were gathered around the edge and in the remaining oil. Looks to be of a brassy/copper colour but might just be coloured from the oil. Lots of shavings on the filter and oil plate. Took one rod apart to see the big end bearing it was faded and worn. The crank doesnt look bad, that was just one rod though, still five to go!
Is the sump meant to be joined with sealant as the gasket or is there a proper gasket for it? Also there was sealant around the bottom joint of the block (where the sump bolts to).