I tested the diy oil filter loop yesterday and it works.
So if you're stuck it's an extra option to consider. The mounting plate is 3mm mild steel with holes drilled in at the right places for the feed and return ports.
2x an-6 size mild steel bungs welded over the port holes (you might have to cut them down a bit to get them to sit next to each other)
61cm of braided hose with right angled adapters at either end (they're sold on eBay at 61cm lengths) and a internal sock filter. The filter is 250 microns. I'd have liked to have got 80 micron size but couldn't find less than 250.
I used 1mm gasket sheet and cut holes for screw mounting and also feed and return ports.
Note, when welding don't use too much heat as the 3mm steel will warp. If it does, when you screw it in place it'll go back to flush fitting.
That's about it. Hope that helps anyone who's stuck.