-atomik reign = $1200, just had a large price drop recently, yep its got the lifan oil cooled 120 "monster" engine....
Best pegs are anything really, alloy ones from atomik or stainless ones from city motorbikes (moto vert ones)
Best bet for the front rim is to buy a rear (1.85 x 12") and lace the rim to your front hub. If you do this be sure to note if your front hub has 28 or 32 spokes......
With the wider tyre on the front, you'll likely find that the original front was not centred between the forks and may rub against a leg. To fix this machine up some spacers for the axle of equal diameter, and space out the caliper.
Hope this helps.
ps- generally, no-one motards on unequal rim diameters....