Well there's a whole lot more to spinning than producing yet another vest, cowl or jumper. I don't know about anyone else, but I soon get fed up with spinning the same old super fine fleece, which is why I mostly spin Heb these days, with just the occasional Shetland and never merino (sorry to those who love it
)
There is also more to using spun yarn than knitting and crochet. Weaving (or felting) furnishing fabric, pegloom rugs and textured floor rugs all need a good firm, hard wearing wool - merino would be useless
So why not offer your fleeces for £5 and let the spinner choose. Be open and say in your sales blurb how coarse and hardwearing they are - 'perfect for rugs', 'perfect for hardwearing warp thread'. There must surely be plenty of fibre artists out there who want to experiment and experience a wide variety of this country's huge choice of fleece types - you just need to find the right person
.
I also have a Herdwick jumper which my MiL knitted for me (from yarn bought in Windermere)
. It did make her fingers bleed, and just about cuts my throat, but it is unbelievably hard wearing and warm, and is still in top condition at least a decade after it was knitted.