its taken me a while due to work but i've finally got 95% of the bits and pieces sorted out, and whats not here is ordered/on the way.
i managed to piggyback the ED80 on top of my 6" newt today and it is VERY rigid, i have my focusing gear on the way which will hopefully arrive tomorrow (low profile 10:1 + JMI pc focus) and i just ordered a QHY-8 from Gamma

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now all i have left to do is install the focuser and jmi gear, get the guider up and running again then work out the QHY8 and i'm in business.
i'd still like to get a focal reducer for the ED80 and a 2" Ha filter but that can wait until my wallet recovers from the new camera.
my plan is to image through the 6" and guide through the ED80, the focal lengths are reasonably similar though (600mm vs 750mm) so the ED80 might not do much imaging until i get a FR.
while it might not be an 'all out' setup its still competent of getting good data while still being fairly lightweight/portable which is a big plus.
i'll post some more pictures once i get the new focuser on and throw it all on the mount.