You are looking to buy a board? Do you have a board currently? And if so, what is the version number of the larger chip. Also, do you have a picture of the board? There are 2 versions of this board, depending on if you have the fat spider or the super spider dart head.
If you have a picture of the board itself and the dart head, I can see what I have. I have 1 working 6300 board in great shape that works with the fat spiders.