Hi Brian and
as well.
I'm nearer to 70 than 60 but I modified my 10" Dob to make it a lot lighter, it's now a one hand carry with the base in the other hand (balance) so don't give up hope. And I have to be careful with my back too.
As you say if one idea doesn't work try another. The EQ5 and ED80 sounds like a good option. I build an Ob instead and everything stays setup, EQ6, Lunt 102mm ED refractor and all the attached junk.
And as Jen says that setup will do imaging later if you get sucked into that black hole of $$$.
Ask questions and you are bound to get heaps of advice.
Enjoy..
