As far as I know, the Boston that was on ebay was a variant not used by the RAF (with a covered nose and machine guns right at the front of the nose, the A20G), i’ve only seen photos of the Boston with the glazed nose and machine guns in fairings on the side of the nose.

Would love to see a Boston in the RAF Museum, when I went the other day there was a fair bit of space where the Valiant was, only thing in the space was the Buccaneer and that only took up about 1/3 of the space from what I remember, more than enough space for a tricyle undercarriage medium bomber i’d say :p