I've finally got round to finishing the catch tank so thought i'd post up the pics and details.
No bling bling im afraid just plain old boring black plastic, but it's functional and i don't think it looks to out of place.
After trying a couple of catch tanks i could never get them to fit how or where i wanted, being that i had a spare bit of space kicking around on the o/s inner wing i thought i'd set about modding the carbon filter into a catch tank.
Once the insides were removed (long nose pliers, screw driver and a bit of brute force deals with this) i decided to fill it with water to see how much it would hold, 2 pints will see it brimmed so just over a pint, which should be fine.
Pipework wise it runs from the tank back under the inlet manifold and into a 19mm T piece that's connected into the original pipework, i've been checking it over the last couple of days and im getting traces of oil in there now so it's working.
Couple of pics below, any comments welcome