Certainly interesting, paladin and unit spam could be fun. The only thing I'd say is probably drop the second min choir and a Paladin (because you'd then lack 
FA to take him). I just don't think a single paladin is worth 4pts (and lets face it, the second choir would be pretty useless). Instead, if you drop them and the Mechanik, you could get a Devout.  
 Now, I'm not usually one to recommend a Devout, but in this case I think it could really help out. Harby will be 
DEF 18 behind one of the walls, but there are still so many things that might be able to hit her (boosted shots or anything that ignores cover) once the Reckoner/Avatar charge forward, and that can be a real danger, especially if you're using Martyr a lot. The Devout would give a fair bit of protection from single big shots and spell assassinations that could otherwise be an issue for this list. Just an idea, anyway 
