This isn't really a question of 'how do I fix this' it's more of a question about what should I do with this thing? I have no intention of putting any money into a repair, but I don't want this in the landfill.

My buddy was clearing out his shed, and knows I pull parts to help repair other neighborhood bikes so he gave me this (mostly) complete Rock Hopper. He got wacked by a car a few years ago, and while he was unharmed, the bike was pulled under the car and broke the chainstay. I rigged up a quick straightener jig to get a picture of how severe the crack is. I don't think this is a highly desired frame, so I am mostly interested in hearing what this community thinks I should do with it? I pulled the mostly complete RSX groupset and may set up another frame with those parts.