I would be tempted to go with a 54% gear reduction myself. It may sound a lot and also sound over the top but going faster is easy by shifting up a gear, if an 18% or 32% is not low enough you’ll be kicking yourself.
My old 300 had a 54% and with 25’s was great around the farm yard for towing, usually 2nd or 3rd gear but first was perfect when you were carrying an unsteady load.
98 300 Fourtrax 4x4
Custom built mud bike - Now sold.
2004 Foreman 450S
Fully overhauled (nut & bolt rebuild), 2” lift kit, 28” mega mayhems, ITP delta rims, ES floorboards, 22” LED lightbar, Pyle Bluetooth sound system.