Bad timing that man! As i've also seen a Herald 13/60 for sale for only £850 and just up the road from me and i thought i was doing well ignoring that so i'm not going to look at these...... i'm not!
Can get a Scimi for less than £850 and there is no point in repeating yourself, might as well have one of every model. You just need a Sptfire for the cordite : http://www.ebay.co.uk/itm/TRIUMPH-SP...#ht_640wt_1267