Got it sorted, poured water over screen and it dripped in from the scuttle panel, Got under dash and pumped some good sealant into hole, tested it, all good. small leak from bottom of rear screen, same sealant.
Took out all the underlay, was rotten and smelly, wire brush dloor, zinc paint, Got some foil backed soundproofing, covered floor and then replaced the underlay with a modern rubber one, carpet in, nother job done.