Hi Pontus,
Some time has passed since this thread, but I find we have a similar approach with our Bolex EL's! I've been modding mine, (and funnily enough also had Les Bosher convert it to PL - he's great, and I have the Cooke S4is.
I was wondering if you modded your battery solutions at all, and if you ever did manage to come up with a good Video Assist?
Personally I love the EL. Super 16 is well worth it and your prices seem spot on.