I'm not sure about current prices, but I found RKD's armor very accurate for ROTJ and reasonably priced. I'm sure his ESB is the same, if that's your Boba.
RKDs stuff is worth it and he is just an awesome guy to deal with. I Think for $300 you can get most parts. So unless you have a deadline $300 would get you a good start until you have the dough to get the last piece or pieces of the armor.