The I-195 Commission, a state agency, bought most of the land and is reselling it, although some was given for free to use as a public park, including the 5-acre parcel the Pawtucket Red Sox, a Triple-A affiliate of the Boston Red Sox, want to build on. The PawSox launched a public relations push earlier this summer it calls a "walking tour," in which team representatives invite the public to visit the parcel on most Monday evenings to hear about the proposed stadium, but it appeared that no PawSox representatives were there Monday. [...] Lucchino and state officials have been meeting behind closed doors to craft a revised proposal. Federal highway regulators have told state officials that if the PawSox build a stadium on land that was supposed to be a public park, the land will have to be sold at fair market value first, which could add millions to the bottom line.