Inspector
Nyuck, Nyuck, Nyuck!
Perhaps making a handle similar to the Veritas Flush Plane would be an alternative. Either cut a chisel's tang off completely or use an old plane blade cut to a width of your choosing. No heat treating or bending required.
https://www.leevalley.com/en-ca/shop/tools/hand-tools/planes/32664-veritas-flush-plane?item=05P2001
Pete
https://www.leevalley.com/en-ca/shop/tools/hand-tools/planes/32664-veritas-flush-plane?item=05P2001
Pete