horn wire burnt on mine due to some wannabe hero alarm install, i traced the wire back but it has long seen better days instead i wired it to a new relay and went to the battery bypassing the main wiring loom. there are several rubber plugs behind the dash that will lead to the engine bay. the horn is live on MK1 on later on a MK3 it works with ignition, if thats the case you need to tap off the ignition first. The correct is live for a cab. A relay will cost a fiver maximum, fuse a few pennies. you can take the wiring across underneath the scuttle panel at the top of the engine bay and get to the battery then.
The wiring loom on MK1's are not the best and there are alot of bugs but then again its an old car, the wiring loom is not as scary as it seems, ideally go straight to battery, so far the fuel pump relay has been rewired, the dash lighting, exterior lighting and the alarm system.
bodywork will have stone chips and the odd rust spot simple fixes look at other cars its aged i doubt any of them could match it for condition
i wouldnt bother about the engine just yet get it running pucka and looking stock then up the styling if required.
auto chokes are a right pain, some cab owners convert them back to a manual one.
Youll always sell a pucka golf youll have all on to push an escort
window frames are like hens teeth as they are usually sold with the whole car.
how bad is it?
get a photo all is not lost depends if the inner lip has gone and how much
let me know i am fixing a replacement 2nd hand one up at the moment.