VTREC indicates it's a enduro model
VTRGG indicates a trials model
If you find model/ Manuals and parts diagram here.https://gasgas.com/en/manuals?c=enduroandy=
Did you mark it before removal,if you removed it cos that looks like it's on fully retarded,which will fire after .Try central position then move either way if it runs.
Yes same as Rev 3 according to this https://www.ebay.co.uk/itm/New-RFX-External-RH-M30xP1-5-Beta-Rev3-Evo-00-16-Sherco-Scorpa-Fly-Wheel-Puller/173001997503?hash=item2847b8fcbf:g:-90AAOSwVtZaHDJH
Also some of these if you run tubeless rear tyre https://www.ebay.co.uk/itm/Tubeless-Tire-Repair-Tool-10pc-DIY-Flat-Car-Motorcycle-Home-Plug-Seal-Patch-Box/401727204580?hash=item5d88ceace4:g:2P0AAOSw6JZchqyu