Welcome to Librarium Online!
I am incredibly lazy... and poor. I have also been interested in the look of chaos daemons, specifically khorne. As my nid army has been crippled in close combat with the release of 5th edition, I have been thinking of starting a army that can sucessfully hack, slash and maim its way to victory.
Anyway, could bloodletters easily be mounted on cold ones. I know it is not remotely like a juggernaut, but I think daemons on dinos would be cool... and real cheap.
Input is always welcome.