Assuming BSRR solved the cost of liability insurance, they could build an outdoor platform, next to the Amtrak station, on Gaspee St on the freight track. Then they won't have to negotiate a station lease with Amtrak. They could choose whatever platform height they want - short, using surplus center-entrance bilevel coaches they seem to have in Chicago or California. Or high platforms with wide gaps like Brightline uses to allow wide freights. Just keep the gap fillers permanently extended all winter.