it is a lovely bike but if you want somebody to part with £1300, you should at least do a proper ad with complete spec, better photos and the size which you have not even stated yet.
The RX7 brings back memories! I used to have a light green one which was terrific fun.
Bicycle looks like a 54 square? Can you confirm the centre to top and centre to centre, seat and top tube meaurements respectively please?
Any close ups of paint damage as well please (I see the usual front brake on the the down tube convergence!)
Thanks and regards