After a lot of consideration, I've decided to go with a save system, possibly without a "quick mode". I think that will ensure everyone has a similar enjoyable (and terrifying) experience.
I've also been working on modeling a 3D arm. That's going really well and should be done pretty soon.
Unfortunately, I'm leaving for vacation soon and there won't be any updates for a while. Sorry. I'll have some screenshots and maybe a beta build for you guys when I return, though, so look forward to that. (There won't be any spoilers in the beta.)