So sorry about ue situation. I wish you luck. I got a situation also that's got me thinking about selling mine. Last fall I was diagnosed with stage 4 cancer. Things are progressing and I don't believe I am going to be able to ride anymore. I has a 95 with 36xxx on it that looks like a new one...
I think the mindset will never be ready to give it up. The issue is when your age induces physical limitations that affect your riding ability. I am not looking forward to that day myself.
Yes the Cobin is firm but thats a good thing i believe. At first i though i it was too firm but from the first ride i knew it was much better than stock. Went from riding a maximum 80 miles on my stockseat to 300 on the Corbin. The more miles i put on it the more comfortable it becomes.