As for leak transformers, a lot of them are lying around in column bases, even after the lanterns are long goneOur local depot usually has a couple of leak transformers in the scrap bin hidden under dozens of failed electronic gear units
Cheers guys, and thank you mazeteam for keeping one in mind on your depot visits. It sounds like Colchester should certainly still have a few around then.
Phosco also PM'd me and said he may be able to get hold of one, which is a very kind offer as I really have no idea what I'm looking for! Thankfully LampCo hadn't quite run out of SLI lamps when I put in the order, so it sounds like a conversion is on the cards!
Thank you to everyone for all your help and advice recently. Firstly, I had no idea you could still get hold of SLI lamps in 2009 (although that situation might not last until 2010!), or that the 140w SLI could be run on 90w SOX gear (admittedly the old, harder to get gear), or that the end caps are easy to get hold of because they are the same as on some fluorescent tubes!