Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

yeah, its officially dead, it started playin up a few months back, n it was doin all the signs of a head gasket gone, untill a few weeks back when i opened my bonnet, and watched water litrally being sprayed all over the place, it was pouring out of my tempreture sender switch and the thin pipe next to it, and i belive it was dripping from the camshaft sensor too, and obviously being right above the timing belt its dripping down and thats flicking it everywhere! i bought a bottle of that rad weld stuff and that just turned my water leak all glittery! so that didnt work, so its been sitting on the road while im making money to fix it, it would start but it would make a really loud horrible rattley crunchy sound, my dad said he thinks its the camshaft, and i tried to start it this morning to have one more look and it wouldnt even start, may just be a flat battery but i dont think it is =/ i got someone coming to look saturday morning to tell me what exactly it is and if he can fix it, otherwise i gotta get an engine rebuild, anyone ever had these problems or got any sort of idea what it could be? its a 1.0 12v standard engine.
Cheers