pretty much you will need the balancing pipe and poss the longer alternator belt as the balancing pipe runs under it.. but i have been drinking and might be talking pish
Should be a straight swop... hopefully your new tank will have the cross over ... if not buy a length of fuel hose of the required spec and a set of QD's.
Did this with my 1150 in '04 and am assuming you're doing the same...
Unless you get the sender unit etc included with your new tank you'll need to transfer everything over - the captive bolts on the tank (x5?) are recommended at 5nm (CHECK AS THIS IS FROM MEMORY AND I HAVE BEEN WRONG BEFORE) - be extra cautious tightening these up or you'll snap it of then you're in the doodoo!
(You might also want to think about changing the petrol filter while you're in there too)