Well my budget catch can arrived 
Going to use this mini compressor filter, with the filter slightly modified.
I'm worried about the pipe work though and having kinks in it, but not worried enough to start spending loads on various elbows to fit properly lol
Can anyone see any issues with the path below? I'm going to attach it to the engine cover bracket (yellow) once I've knocked up a metal bracket.
It has a release valve at the bottom when the pressure drops, i may block this or add a small 4mm pipe and just vent under the car...