Generation IV Internal Engine - Custom LSX Timing Cover

Ok guys,

I've got a need to make a custom timing cover and see there are issues with regards to clearing certain oil pumps and timing chains.

I already reviewed this thread: http://www.ls1tech.com/forums/generation-iii-internal-engine/852934-timing-cover-wont-fit-after-hv-dr-install.html

So it seems to me that the easiest method is to A) just add a bit more material to the perimeter to of the engine block mating surface OR B) give more clearance inside of the timing cover around the crankshaft while adding more material on the opposite/outside.

Is there anything I'm missing or need to know?

as long as added material to the outside doesnt interfere with the pulley