The deck castings are identical in all HR215 variants, and I'm pretty sure the HR214 as well . . . possibly also the HR216. The main change 214 to 215 to 216 was 120cc to 140cc to 160cc GXV engines - same block mounting pattern, just diff cyl bores. I just redid my early HR215 and replaced a cracked deck with one from a late production HXA (hydro) variant, and zero differences. As others have noted, the main change on the engine was trim, and the plate that handles the throttle cable connections changed a bit, and I think thry may have omittedthe fuel shutoff in later engines, but that's trivial.
I'm not sure what 'shaft' you think you bent, since this series has the blade clutch directly on the crankshaft, so hopefully you only bent something in the clutch - I doubt a crank replacement would be viable. If it idles without the blade vibrating, you are probably OK. And bend in the crank would shake the the clutch violently, engaged or not(the clutch freewheels on bearings concentric to the crank . . .).
On mine, with likely close to 2000 engine hours, the cylinder was still within tolerances for stock rings, so I just honed and did rings. The upper and lower crank oil seals had petrified, so change those and that was it other than gaskets. The carbs on these are simple to work on, so really no need to ever consider replacing one of them short of having hit it with a sledge hammer. My wheels had gotten a bit sloppy, so I replaced those to not owrry about it, and I also opened, flushed and refilled the tranny "while I was there" . . . really no signs that it needed it, but after 30 years, seemed like a good idea. Oh, and the axle bearings in the rear wheel adjusters were utterly destroyed beyond repair, so I replaced those as well. All in all, it's pretty much back to new condition, and shoukd be good for at least another 20 years . .