After buying the actual Park kit.. yeah just get the Ali version. Looking at the photos they're basically the same thing (minus the plastic sleeving for some versions). The Park kit is literally just sleeved/coated gear cables with neodymium magnets heatshrunk onto the end.
OneUp bars do have an advantage over stiffer bars, only a subtle improvement but definitely adds up over longer descents. Can't speak for SQLab bars.
Revgrips definitely make a difference, they do work very well if you can put up with the price. I have since gone back to using others as I was...
Item: 2022 Fox DHX Factory coil shock - 185x55mm Trunnion
Location: NW Tas/Post
Item Condition: Excellent, not much use
Reason for selling: No frame to match, was on a Norco Sight A1.
Price and price conditions: SOLD
Extra Info: Bought from Cyclinic 22/6/2021. Have Cane Creek VALT 500-610lbs...
A good start would be a Luftkappe and changing out the bath oil for some Supergliss 100k. Have they been properly serviced (ie more than just dropping lowers, regreasing and replacing the bath oil)? Seals, foam rings, o-rings etc need to be changed over time, if the forks haven't had a proper...