Relocating coolant tank tips?

[L8 apexr]

I'm finding it way to difficult to fit an air filter with my M52 swapped e30 to the intake pipe of the powerdyne supercharger I'm installing now.

I've already deleted the ABS controller(didn't work for some reason anyways) and if I relocated the coolant tank I'd be able to fab up a much better solution than drilling a big honkin' hole in the chassis and running a filter under the car.I removed the washer bottle so that's a decent location as well as the unused battery tray.

I have an aluminum rad which is needed to allow the upper neck to be cut and rewelded 90 degrees to miss the charger so switching to a rad mounted coolant tank isn't an option.

I'm all ears for a workable/affordable solution.

[Wishno87]

I was thinking about putting it in the battery tray next time I switch motors around. Probably use the US e36 hose that goes under the rad and extend that.