I've ordered from Tank Army and yea they are a great outfit to deal with. With shipping for two sets of gearboxes, it actually worked out less than from Welsh or Rctank.de

Looking back MOST of my 'higher end' tank parts, like metal hulls, better gearboxes, kits and such have come from Europe.

RcDynasty / Mato is great for regular metal upgrade parts, or entire basic HL tanks to work on from scratch.