Hi Doug and welcome to the HOC. I also have a C # serial cherry burst 170, in lefty, they are not especially rare but not very common either. Mine has two volumes and two tones and originally had the VIP system with 3 mini switches but now has Duncan P-Rails fitted.
I agree on the strap button placement, the guitar does tend to kick forward while on the strap and I've been meaning to move it to the upper horn but haven't done so yet.
Paul
btw it's good to post pics !