Firstly thanks Blue Skies for the info regarding the LXD 75 your comments seem to confirm what Dave had said earlier.
Rob your suggestion makes sense.
Because we always travel with our dogs as well as our astro gear we need a lot of room. We have a Commodore Wagon and when we have the Dob & dogs in the back it is a bit of a squeeze.
You guys have convinced us that we wouldn't be happy with anything less than a 12" and we now totally agree.
We've decided instead of putting the Dob in the wagon we'll put it in the original box with thick foam packing and travel it with the base and other gear in a trailer with a covered canopy.
Once you have a 12" Dob aperture fever tells you that you can't go back

Our 12" will be our only scope now until we decide in the future to go bigger, maybe to a 16" further down the track as our main home scope and still use the 12" for our travel scope.
Now that we've saved ourselves the money on a LXD 75 maybe we'll look at getting an Argo Navis
It's great to run ideas by the IIS members it helps us sort out our needs and priorities and we discuss it between ourselves and come to a decision with their constructive advise.