Well, I have finally made progress and got a working system!
I built up the Oakley compact PSU, which was a fairly easy build - even so it's still a bit nerve wracking plugging in a DIY power supply for the first time. Luckily there were no bangs or any smoke.
I've also finished up my Low Pass Gate - wow, it sounds amazing.
So I've got a small working system with a Blacet Midiverter, VCO, DAD, Dual VCA, Micro LFO & Mixer, a Bugbrand Bugcrusher (minijack version) and my DIY Low Pass Gate.
I now need to finish off my Fonitronik Attenuverting Mixer & Mattson VCF.
I should also get some pictures together.