Like most I don't see £1450 , the 750 lowers the Interest . Though I can't see why , the 750 is more than adequate in the real world.
So that means it's a project fully not just a restoration. Except for the frame what else is unobtainable that you will use ...the most you'd make back is £200 if your lucky all the parts will need cleaning etc.....
Again why not present it better , a few hours cleaning and making good and the first impression would would be better ....adding you bought it to do but haven't just makes it seem worse than you first thought .
£500ish unless you get someone who genuinely wants to get it back up and running .