here is my opinion.
rec racers ( i believe this is you) +3+1 forward a-arms ( you can keep the stock offset fronts and it will turn nicer) -1 round carrier swingarm this makes them more stable in the air you basically moved the motor back 1 inch and leveled out the nose heavy banshee. ANY +4 axle i'd rather have a nice used LSR than any other BUT a g force will be ok. WORKS front shocks with ressy there are 5/8 shaft fronts out there and maybe even find some black widows or dual line ressy shocks. OR any after market front just plan on having them rebuilt and honestly a rebuild may cost the same as a set of new ones SO watch it!
another thing that peeps arent sayibng is the motor if the motor hits really hard tha will wear you out faster than anything.. also BARS! the GEO of te bars, pegs, etc goes a LONG way in comfort if you can hack it a decent anti vib stem and a set of KX high bars is a good combo stay away from those retarded "atv" bends with a shit ton of pull back. that makes a lot of strain on your wrists and can hurt you if you of camber land a jump
then TRAINING!! YES mx is a WORKOUT you are going to be sore and your gonna hurt but if you keep with it you will notice you will get stronger..
i do whole heartly also agree with the 450 statement. a nicely built average 450 will flat out stomp a banshee with the same rider mostly from modern ergo's and a motor that dosnet wear you out as bad. the OUTLAW is a bad ass MX bike but as stated is gonna cost you out the ass to get one,.
OR you can do this!!