frist off welcome to bhq...
as far as the race gas...do a compression test on each cylinder.. if you over 150-155 you need race gas...
the fenders... i love the look of cut fenders...but the stock fenders are nice in muddy stuff..
throw the stcok size swinger on there and some good tires
i run yamalube 2-r 32:1 but im going to switch to maxim 927....
i think i covered it all