Easy guys, I really appreciate everyone's input, advice and opinions on this, particularly as it's not something I've considered before!
Shunting my existing strings over a notch gives me as they stand..
A 80 D 60 G 45 I found a potential C at 30 but it wasn't long enough.. I've got another bag of random regular Git strings that I'm hunting for amongst my junk, I'd think I'll be bound to have something 30 to 35 in with that lot.
My intention is to give it a try with what I've got available already, as proof of concept and if I think it's going to be a useful / desirable thing, I'll look at getting a 'proper' set as mentioned above.