why so keen?
Hi Christian.. why are you so keen to get rid of the big tank? its a very handy thing to have, and if you want to fit a smaller tank cos it's lighter... just fill the big one half-way...? My tank fits straight onto the bike, no need to fiddle with anything... I have fitted an acerbis headlight unit, works well and is small and out of the way..
My suggestion is if you like the LC4 adv.. get it an just remove the fairing and put an aftermarket headlight on... keep the big tank on... will save you having to fiddle with different seats too...