You pays your money……
A good scope on a poor mount will show little.
Conversely, a poor scope on a good mount will show a lot more.
Lots of scope dealers around the country with similar prices.
Will you need a larger mount in the future?
Try your local astronomical society, they will point you in the right direction and maybe have a used mount for sale as members improve their equipment constantly.
I'm currently helping restore an AE 15" fork mount, formerly used at Sheffield uni, it weighs best part of 250kg complete 