Tristan, try Farmarama & Burmeisters before going to the 4x4 outlets in E.L. They just might have and would be cheaper.
As mentioned, a highlift jack, chain, some 'D' shackles, spade and sand ladders (I use a pair of 6mm aluminium checker plate tread plates) will get you out of almost any predicament. To use the jack as a winch is slow but works well, the only serious drawback is one of safety because of course you cannot operate the jack remotely, putting you in the line of fire from whiplash if something snaps.
I also 'go it alone' quite often and the truth is that you don't really get stuck that often so I've never bothered to get a winch. Also one tends to choose your path more carefully and hone your offroad driving skills.
Otherwise phone Cassie, he will phone me and I'm just 20 mins up the drag, so it will be easier for me to phone the towing & recovery company
Good luck and happy trails.