The nose fairing will most likely be a split mold of at least two sections, though some OE fairings seem almost designed to be taken from a single part mold!
I'm not familiar with the RSV so I couldn't comment, but it should be apparent when you look at it

Fitting lugs will have to be glued on afterwards, there's no way you can capture that detail with composites on the opposite face (well, you could use a matched tool but the lugs would be fragile)...it's an injection molding speciality. Plent of excellent products to bond to epoxy and stronger than you would think, probably best to ask in the product section.
I'd do the lower fairing panels first as they will be easiest, then when you have got to grips with the method start looking at taking a mold from the nose fairing as that will be a step up in terms of challenge.
You can make a full cf petrol tank if you are inclined, two methods....
1. you mold the top and sides in a split part mold and then mold the base seperately leaving a lip, then glue together when finished...
2. you make a plug out of foam and wet lay cloth over the top by hand, then dissolve the foam once the tank is complete.
There are details and discussions of both processes on here, it's a really big job and if you want to use the first method you will usually destroy the originla tank during the mold making process.
Good luck!