back in octwent down going over 80 and as you can imagine it really messed my bike up and ihave been rebuilding my bike since. when it comes to bikes im kind of a rookie and im getting really close to having bike ridablehaha so id love some help...so my questions...

1. i see the complete plastic sets for 03 cbr 954s on ebay after shipping like 500 -600 bucks. i keep hearing they are bad material, melt, dont match up, but they look so legit! and for the price its so hard to just forget. the ratings for these parts are 99.2% positive across the board. has anyone first hand seen these plastics be garbage?

2 after the crash my stator cover cracked and i put on a new seal and stator cover and it started but the seal cracked and oil started dripping so i went and used high temp transmission fluid sealent recomended by a mechanic and then it would not start so i tried jumping it with my car and it finally started but sounded like hell so i turnded the bike off before i screwed up the motor.. whats going on?

3. i think the previous owner changed the sprockets on my bike cause its wayy to easy to pop wheelies. its a 954 and i have tried racing my friends for fun who have 600's and i barely win no matter what i do im on one wheel the whole race and sometimes the handelbars will go into this crazy wobble shake and it takes all my strength to stop it from going down.. thats happened like two times. question is, i think a steering stabalizer will fix this or just getting stock sprockets, but i heard extending the swing arm would also help.. and i really like extended swing arms. how much would all this cost ballpark?