I love me some long-term plot. ; D
I would like to offer up my angeni of Redemption, Kaiya, to Chimalsi if you'd be so inclined. She's a very gentle mare but is on a mission to help heal and save the world; she searches not just for the broken and the damned, of course, but for any soquili who may be in need of a helping hoof.
Seeing as how Mr. Chimalsi is rather obsessed and involved with his trove of shinies, she would prefer to invest some time and try to get him to realize the err in his 'love'; that the shinies will never be actually love him back. Or care. Or honestly feel anything. . ..
So yeah, as you say, this sort of fixin' is probably going to take a lot of work, RP and investment but if you're willing I'm willing. This is what Kaiya does best. ; D
Just let me know if you're interested! And even if you'd prefer her to not try to help, just some generic RP is great too.