Little update.
I found a wrench to get oil filter housing off 237 without any fuss. Happen to have an offset box end wrench that just fit.
I got twin filter mounted and painted with motor. I have turbo feed line 1/2 installed but will wait to cut other end to length until after I get valve covers fitted and make sure line is correct length.
My package showed up from Kevin with my offset plate for tip turbine along with dog leg rubber feed hose.
I did find that these valve covers don't clear the mounting bolts for rockers(on top of Jake's). I think my 237s don't have this reinforcement plate under mounting holes. Or maybe it is just because I don't have gaskets in place yet? It's close, so maybe those will shim covers up enough. Will check into that.
EDIT: with two gaskets it looks like it just clears. Likely just like the 237 was. I didn't got out and look at 237 covers.
I am painting pieces and mocking up. Very close to getting intake pieces in for good.
Kevin sent me a template to mark frame for R power steering box. Something else to get working on.
Hoping to maybe prime this up by next weekend. I have filters and oil for it. Once I get turbo feed line on, it is ready.