Hopefully your health issues will be resolved over the season. On the bright side, it's a good time of the year to sell a rib. I'd do as suggested and keep the fancy bits you bought. You'd sell them on here for more, even if you don't use them yourself.
It seems to be a recurring theme - people leaving ribbing for health reasons. I'm not sure is it ribs, our age profile or just stats that are to blame. I've had some use of Sonar's geckos, and I feel guilty every time I wear one.
If you get a chance over the summer (shows etc.) have a look at ScotSeats shock mitigation seats - they're expensive but one for your next helm position might be worth thinking about - they make a huge difference to the ribbing experience.
All the best!
willk (& crew