I think it might end up quite big, although that's not neccessarily a bad thing!would love to see pics of what you come up with!
By all means use them if you like them.I don't think that they are quite the right size personally, having seen someone else try this, and post comparative pictures.
the SRW and MRW are impractically big in my experience.... the fact that the MRW towers head and shoulders over a warlord which itself is a chunky model kinda puts me off