To be honest I'd take a bit of time and remove all the studs/bolts as these are titanium and about £4+vat new, they come in handy for guys refubing there own wheels. Then I'd take the rims down the local scrap yard and weigh them in.
I think given the condition of them this will give you the best return.
£40 for the 4 so £10 a rim, nothing lost if they don't sell, Local alloy company said they can straighten under heat for £20 a rim but
If no one wants them I'll just weigh them in and try to remove some bolts beforehand!
Agreed they have had a hard life... Sadly that is the result of severe pot hole damage from our road which was almost impassable at one point!