Many thanks for the reply - some good ideas for a mount there, along the lines I was thinking. Notably I did previously decide on a Zhumell Z130 - which arrived with the (chipboard) mount completely broken - so I'm pretty sure I can make something better! (Last in stock apparently, hence the change of plan)
Also, being new to this, very helpful to get pointed in the right direction for eyepieces - much appreciated.
Got it. The Mak is tempting because it's a bit neater, but I think this is only for astronomy and will likely largely stay at home. Also pushing the budget a little - I see Skywatcher StarQuest 102MC for approx £200 but I'm actually wary of including a mount/tripod at that price point - recipient (my wife) is a photographer so I'm well aware of what a decent tripod/head etc costs! Hence leaning toward making a dob for starters and then maybe upgrading somewhere along the way.