Are there any homebrew Pathfinder classes for the Warmachine Warcaster? I've somewhat made my own version using the summoner as a base, but I'm not the best at this kind of stuff so I would appreciate any nudge in the right direction
There's the whole official Iron Kingdoms Warcaster Prestige Class designed for 3.5 by Privateer Press... Would take a bit of work to convert over, but not impossible. Trick is to remember that the greatest strength of the Warcaster is his/her powerfield, which is a unique interaction of Focus and Mechanika Armor.
Rules are in the Iron Kingdoms Character Guide available here:
http://paizo.com/store/games/roleplayingGames/i/ironKingdoms
dotted