Hi John ... probably best to toddle into Bintel for a look, and they can explain a few things to you, and show you at the same time.
I think the 8" dob is the best and easiest to use. (scopes can be VERY FRUSTRATING to use
) but I do have one similiar to link below of yours, and it is pretty good and easy, once over initial hurdles.
https://www.bintelshop.com.au/Product.aspx?ID=8542