I recently bought a pair of YSS RG362 TRCL piggybacks for a Mirage TS that is in Canada at present, soon to be shipped to Australia. I bought them through the US agent (www.yssusa.com) at US$769.00, as the bike was not in Australia and the freight to Calgary was reasonable. you can get 20 click compression adjuster for an extra US$50, if you want to.
I looked at YSS, Maxton, Ohlins, and Wilbur, and also spoke with a few people on and off the forum.
If it helps, here is the description for that model:
Type: Self Adjusting Gas Shock with Piggyback Reservoir
Features: Pre-Load Adjustment, Rebound Adjustment 60 Clicks, Compression Adjustment ? 3 Positions: Soft, Medium, Hard ?36 mm 50 Micron Steel Bore and Radial Sinter Piston ? 12 mm Hardened Shaft ? Low Friction, Long Life Seal Block ? Bearing and Bushes or Clevis/ Fork to suit each Model ? Damping and Springrates Model specific ? Fork Fittings for Honda, Suzuki and all Scooters ? (Included: Ride Height Adjuster (Length Adjuster for +10 mm).
Available Lengths: 280 mm, 300 mm, 310 mm, 320 mm, 330 mm, 340 mm, 350 mm, 360 mm, 370 mm, 380 mm, 395 mm, 420 mm
I decided to go for 360mm length, with additional 10mm adjustment.
Yogi