Lego 6987 - Message Intercept Base

Lego set # 6987 - Space - Blacktron 1 - Message Intercept Base was released in 1988 The set includes 5 mini figures, a lunar rover and an airplane The set is complete and includes printed instruction booklet However, there are 2 color differences and 2 slightly damaged pieces (See photos) Part # 9244, Technic Universal Joint 4L, is half black and half grey Part # 3960, Dish 4x4 Round Inverted, are Transparent green. I am also including the one yellow one that I do have and will continue to look for the second one until this set is sold There is a small chip off the corner of the baseplate with crater One of the two tall support stanchions is missing part of its base. (This does not affect the performance of the set and, as it is one of the first pieces used, is not visible once the set is assembled.) There is some discoloration on the plain base panel The asking price reflects these issues