So he is keeping theese 3 sets- 

Hi I was offered this Brickheadz collection. Is it worth for theese prices? Thank you for every suggestion.

Definite For Sale:BTTF #41611 x 3 (one box is slightly bent, see pic) £50 each (maybe less for damaged box?)

#3: #31079 Sunshine Surfer Van, #41611 Marty McFly & Doc Brown

#3: #31079 & #41611

in the United States. #41320, #41350, #41631, #41611, #70613, #70911, #75174, #75204, and #76095 are also all listed as exclusives on the Target website. Some of these already have their availability