Section 2--304. Price Payable in Money, Goods, Realty, or Otherwise

(1)  The  price  can  be  made payable in money or otherwise. If it is
  payable in whole or in part in goods each party is a seller of the goods
  which he is to transfer.
    (2) Even though all or part of the price is payable in an interest  in
  realty  the  transfer  of  the  goods  and the seller's obligations with
  reference to them are subject to this Article, but not the  transfer  of
  the  interest  in  realty  or the transferor's obligations in connection
  therewith.