I put it under a cover and forgot about it until a month ago. Bought a scrap exhaust for a few quid for a different bike to make a new one and low and behold on eBay a VGC one turned up in someone's shed.
Finally all I need is the front wheel spacer which is somewhere in my house and I just need to find it.
Rode it about at slow speed (on private land) today and engine runs super smooth with an exhaust on it, so pleased.
Get that spacer found this weekend and it will be MOTd next week. Mirrors to go on and front number plate to remove (it's just Velcro fitted over head light)