Spent about 15 minutes shaving down the LH side of the oil sump fins with the surform file. Not sure if this is enough yet, but it's a start. Cut the gear leg opening by measuring from the RH cowl, so it fit pretty well on the first try. Then lined it up for the side trim and made that. Next up will be the bottom aft trim then the top side. Looks like this will make the centerline easily.
Oil sump fins - not sure if this is all done yet.
LH side in place.
LH side trimmed. The hinge won't show - the cowl will be pushed back over it.