Hey Gaz,
I'm doing something similar to what you're looking for - I'm using a 22 degree aluminum elbow at the top, attached to a straight CF tube to the MAF, with the green filter pointed at the hole in the fender well - I'm hoping it will all fit in there without too much modification. The fabricator is making the tube special for me with flanges and reinforcements around the temp sensor and any mounting points - I just need to draw it up and send it to him - his quote so far is around $50-60 plus shipping, so if this works out for me it may be something you'll want to do as well. Depending on how effective the shield supplied with the green filter is, I may enclose that corner in sheet aluminum with some type of insulative backing - at minimum I may get a plastic garbage pail like dragonbob and enclose the corner and it seemed to be effective to him.
WG - I see that you've blocked off the tube from the passenger side that hooks into the intake and replaced with that small breather filter - did you have any issues with codes doing that? It would make the intake easier to fabricate.
-- John