Crooked Dice Ogres as Cavemen, Trolls or Morlocks

Crooked Dice, a fine manufacturer of 28mm miniatures is running a Kickstarter to expand their Orc range. This includes Ogres and Trolls as stretch goals. I don't like the Trolls as much as the Ogres. The bases are 40mm rounds and CD stated on FB that the Trolls are around 50mm tall, so I assume the Ogres are similar. 

I'm thinking the Ogres especially might be useable as Cavemen, or Morlocks - and I might use them as Trolls as I don't like the GW-inspired or D&D versions. A bit pricey though @ 8GBP a pop!