So to finish the pan, we need to know the engines setup, more specifically its happy place.
Three weeks ago I drew the flat plates that bolt up to the block, and the overkill side plate loops around the sleeve to make the engine mounts. Lets just say, broken engine mounts annoy the shit out of me at the track.
In 2003 I drove my 180sx drifter from Malacky, Slovakia to a little town called Nurburg in Germany, some 900kms away. About three quarters of the way over I started hearing a nasty noise, a chatter, only on boost / acceleration. Turns out I had cracked a engine mount apart on the casting.
So to let it know how dissapointed I was, a couple laps of the Nurburgring late in the afternoon session did it. And pissed me off the whole time.

Mate of mine Todd gave me a set of Nissan Patrol trailing arms he had laying about. I cut off the arm-tube, cleaned it up and put some plates around it. This way I drop in a Whiteline polyurethane Patrol trailing arm bush, four come in the bag, so engine and a spare set in the toolbox, plus the ability to buy engine mounts anywhere in the world, OEM or aftermarket.
I put in a laser cut order, for the pan, and these end plates a few weeks ago. I took a guesstimate on the size, and got it (the block) about 8mm off each side. Perfect, no need to trim down. The baseplate I made out of 6mm, but the side plates are 5mm, I know its minor but my OCD (I dont actually suffer OCD, but this will annoy me) wont let me off this out. It could have been 5mm, if the front end isnt behaving as it should, ill know that the extra weight of the 6mm base plate is all at fault!. Ok, maybe not.