Thanks Stewart, familiar with the site and their offerings, but if I just ordered something online, I would still have found myself sitting around twiddling my thumbs! More about keeping busy in poor times really. Not to mention optimizing weight and form factor, those units lot a bit on the fat side.
@Brent, agreed, not the optimum cooling solution by a long shot. I wish I knew what the EXIF temps were doing during a session with this setup (I know not a 'real' gauge, but from past experience if the eixf on lights, darks, bias and flats are all consistent, I produce good images) , but still the crappy Perth conditions are keeping me locked out of the shed. Hopefully in the next night or two I can get out there and log some data. I haven't given up on the cold finger, I just had to put it down for a while, it was really frustrating me. I have been through the thing with a fine tooth comb ensuring everything was ok, and after about 10 images ....99. I will revisit after some time away from it.
Don't worry about the duct tape, it bloody fantastic stuff!! It's been holding my rally car together for years