Crankcase degrease and Gasket set

Yesterday, I received via courier 2 gasket sets that I ordered from cruzinimage_co on eBay.
I got an MC18 set for myself and an MC21 set for Dave. As it turns out, Dave is going to be using MC18 barrels on his MC21 engine so I actually should have got Dave a MC18 set. D'oh! I am pretty sure that the only difference between the 2 gasket sets is that the head gaskets for the MC18 are hexagonal where as they are round for the MC21.

The gasket sets cost USD$36 each with combined freight of USD$21.
Ended up being NZ$65 each for Dave and I.

Also, I spent a few hours with a bucket of diesel and a toothbrush de-greasing the crankcases, barrels and heads and water pump housing.