Nice pickup mate, go the LWB!
My fbt is heavier in steering than my sportsman, and its due to not having SSS (Speed Sensitive Steering) as it was a delete feature on the FBT and didnt come in the ef/nf/df's..
So basically im guessing its meant to be that heavy, you will get used to it fast, i did where as at first i thought the PS pump was dead. LOL
As far as mods, zorst/extractors/underdrive puleys they are your first easiest and have good power to be made.
Then look into maf/heads/roller rockers/camshaft...
Again nice car and hope you enjoy it, pics would be nice