nice looking cabby you got there, not too sure on the double exhaust look as when one does not smoke on cold mornings can look silly
anyway go here
http://www.worlduph.com/topbmwinstructions.htm
i just bought a top myself and was going to fit it but got a great deal from a good local company so they did it and i watched them for a bit, to be honest it does not look too difficult to make a fair job of it, but biggest problem is making it waterproof, sealing wind noise is not too hard but water is something else.
i would also as a minimum you change the top seal pt1 (that goes over the front window and half way along the door windows) and there is a metal rivet bracket (i think part no 2) here
http://www.realoem.com/bmw/showparts.do ... g=54&fg=10
the part i am on about is made of metal and get broken when you take the old roof off as it is fixed on with rivets, you will find that bit when you remove the old roof!!
if yer brave enough to do it you should be a zone hero and take loads of pic and do a tech report! was my idea before i cheickened out!!
good luck mate
