Update: 1x CORE 18f452 kit v1.9e: 20$ http://avishowtech.com/mbhp/mbhp_coreR4d.html 1x DIN R5 kit: 10$ http://avishowtech.com/mbhp/mbhp_dinR5.html 1x DOUT R5 kit: 10$ http://avishowtech.com/mbhp/mbhp_doutR5.html 1x AIN R4 kit: 10$ http://avishowtech.com/mbhp/mbhp_ainR4.html and already soldered kits (used): 2x DOUT R3: 14$ ea. 1x DIN R5: 14$ ea. 1x AIN R4: 13$ ea. Paypal only. pm me.