from what you say they are bloody wide rolls!!! i presume you mean 1500mm?
dont know how much you have to sling but seeing as its contract width i presume it comes on a bolt.
if it does check to see if the bolts are numbered. if so hang in order - highest 1st.
fabric backed so paste the wall with recomended paste.if there isnt one recomended i would look at a fairly light mix without pva because of the risk of marking the front. maybe consider beeline green lid?
check its not reverse alternate lengths if its a plain - wouldnt have thought so if its light in colour.
change you blades often - olfa black would be good.
dont get any paste on the front - some people will put a length of low tack tape next to the overlap when trimming but i never bother when its paste the wall - just work clean.
you may find some clean rag/cloth is better for smoothing than a smoothing brush but if its contract stuff a clean spatula may be fine.
but most of all if its a bolt of contract width just approach it as any wide width and dont be scared of it.
hope i havent told you how to suck eggs. good luck with it.