I'm surprised that nobody's yet posted the obligatory APUG response of "process it yourself," so I'll do so.
In case you weren't aware, Vic, developing exposed 35mm film to negatives is pretty straightforward (even for color film) and doesn't require much specialized equipment. An investment of $50-$100 in a film tank, thermometer, measuring cups, additional miscellaneous equipment, and enough chemistry to do several rolls of film will get you started. Per-roll costs thereafter will probably be in the $2 range, depending on film, chemistry, and how much film you shoot. Getting prints will require more hardware, particularly if you want to do it the analog way. On the (gasp!) digital side, some film scanners will easily scan panoramic photos, but others will be awkward at best. If you've got a flatbed or other scanner that does
not mark out frames with bars in the film holder, you should be OK for going that route. To do it traditionally, you'll need an enlarger that's capable of handling some variety of MF negative to get the full width of a panoramic negative. (My information is that the Horizon produces 24x58mm negatives, so a 6x6 enlarger should be adequate.)
Anyhow, if you don't have a full darkroom, developing to negatives and then scanning to get prints may be an option that's worth considering. (I assume you don't have a full darkroom, or you probably wouldn't be asking this question.) If you're even remotely interested in learning to process your own film, starting with film alone (and scanning the negatives) is the simplest way to begin. If you don't like it, you can write off your initial investment or sell the tank on eBay to recoup some of the cost. If you like it, you can buy an enlarger and other gear and go the rest of the way.