Wow, thanks everybody for some great tips! I like the idea of making a dob mount for my existing; whilst I have zip handiwork skills my brother is very clever with all things metal and wood!
Home has a nice "Greek" backyard consisiting of lots of nice smooth concrete, so their is ample room for using any setup!
I still might have a look at a bigger 'scope; we have a big wagon and no issue with space, and we often go camping (though we usually attract lots of cloud accompanied by rain
).