I guess it kinda depends on what all you were trying to do with the chair, but there are a couple of things I've played that have characters with wheelchairs. Maybe another dev that's used them would be willing to share tips? I found both of them on this site, and I know the dev for at least one of them is active on the site at least sometimes. One is
My Dorm by Tropecita Games. That's the dev I know is active on the site. I think they go by Trope95 here. The character in that game in a wheelchair is a friend character rather than a LI, so idk if they would definitely be able to give the kind of pointers you'd want. The other one is
Come Home by R.J. Rhodes. That game has a LI that uses a wheelchair, so they might be able to help with more specific tips you might need, but I don't really know whether they're active on this site.
To be clear, I'm letting you know this in case it could be helpful and you're interested in trying to continue the story, but I don't want you to feel like I'm trying to pressure you into going back to it if you don't want to. I've probably been reading too much into some of your comments, but it seems like you miss it as much as the rest of us. It's nice that you still show up from time to time to commiserate with us. Good luck with whatever you decide to do