Selling the following used items on ebay:

RCK Board (ebay Item # 120466178204)
XDI Board (ebay Item # 120466179905)
ERS Board (ebay Item # 120466181953)
CPU Board (DEC LSI-11) (ebay Item # 120466184415)
Operator's Console for BOSS 4, 5 & 6 (ebay Item # 120467546748)

All items in good working order when pulled.