Hi Dave,@Mick, thanks for helpful offer, but having carefully considered overall geometry and sizing, I will have to pass. I've got used to sloping top tubes at and at 73 the stander height and reach a bit beyond my flexibility! I have signposted it on Notts CTC FB, which should be its natural home!
Might be worth joining national CTC Forum (Cycling UK now) just to list it.
GLWS, regards, Dave
No problem at all, thanks very much for your help. I will look at joining CTC forum.
Kind regards
Mick