posting a picture of your bike as it sits now would help alot to see what we have to work with. does your bike have the beefy fox 160mm forks? i dont think those had travel adjustments, wouldnt be a great climber, but that bike was made to go down not up. i had the long travel forks on my trek y-glide and swapped them out for a set of rock shox recon forks, the bike is lighter and climbs a lot better now. the handlebars and stem length are going to be whatever fits you best in my opinion.
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Semper fi