I converted my EQ6 to use Losmandy D plates using an ADM EQG-SAD adapter... Since doing that, the mount holds the C11 solid as a rock, where as with the standard vixen dovetail it was like a bowl of jelly...
You'll need a set of rings for your scope, a side by side setup is probably best..
Peter_4059 uses pretty much that exact setup..
10" newt + ED80 and I think his images speak great amounts to what the EQ6 can do...
Mine carries the C11 + Megrez 102 + QHY8 + QHY5 well too, although the usual setup is C11+ZS66 + QHY8 + QHY5... All up its about.... 17kgs or there abouts... Carries it no worries, guides well...
Congrats on your EQ6... Its the start of many a sleepless night!