Update:
1) Heater now working, changed fuse 30amp green. Gets plenty hot in the cabin. Fan speed still low for the windscreen.
2) Changed fuse for folding mirrors - now working great
3) Rattling noise sorted by Autofficina Epsom. Welded the twin skinned manifolds - rattle gone!
4) Changed pollen filter and cleared out all the leaves/gunk
5) Cleared the pipe in drivers footrest. Noticed my carpets were a bit greasy, does that mean the matrix has gone? I dabbed a white tissue to see what colour it would go, it didn't change colour. Doesn't smell of anything either.
6) Is the fan blower flap suppose to close? I noticed that it's spring hinged.
Again, a big thank you to all the help I got from the forum. Knowledge is POWER - V8 POWER!
Special thanks to Zep who dropped by on Friday. Lovely to meet you mate