But I like that they do have quite a close look to sports equipment so wouldn't need a lot of the tech bits taken off.

The heads are a bit too high tech but I could see that drilling out the facemasks and replacing them with bare heads and then adding a bar across the helmet.
They'd be great as Dreadball players too.
£21 for 5 is pretty expensive (it is GW) but it should be possible to sell off some of the spare bits hopefully.