Good point Ian, disconnect battery!
Heat sheild, i made out of 1.2mm ally, had abit in garage, but most probably get some from larger B&Q. Attach it to manifold bolts, dont undo them, but use another nut on the same stud, theres still plenty of room ish to fit it, all trial and error.
Regarding the alternator connector, brothers is ok, why it hasnt melted we dont know, but mine wouldnt fit on, so i had to cut the connector off leaving enough wire to enable it to be connected again if need be, then use some small spade connectors, heat shrink attached it that way...so far they are still attached