As Eric says, the plans offer expired a few years back.  Plans are available HERE.   Maybe someone has one of the offer sets lying around unused (AFAIK only a few craft built using them)?

I believe that the plans, offer, has been cancelled. However, plans are available, for a reasonable, fee, from, Amphibious Marine, shop.

I am trying to get another set of Surveyor plans. I lost the set I had during a move. I have a paid subscription. Is it possible to get another set? I'll pay shipping, or whatever. Thank you in advance