I'm going to tempt my local gamers into MA by converting the scale to 28mm and then offer up their army lists.

What are the guidelines for doing MA at 28mm?

Their figs are for WarMachine (a lot of Large models). Any particular challenge with using several Large models in an army?

I use 28mm histroical mini's on 60mm x 30mm/60 x 60 bases. It works well and looks very very impressiv on the board!

I have been playing Mighty Armies in 28mm for quite a while.

We also used 10mm armies that we based on 40x20mm stands, using the current distances. So when we play 28mm we use 80x40mm bases (80x80 for Monstrous stuff) and just literally doubled all the distances and the board (which became 4x4)

I hope that helps.

You can see some pictures up on my blog www.boromirandkermit.wordpress.com in the Mighty Armies sections.

Cheers,
Ben.