This is a variant of the re-entry vehicle from the Hawk Manned Orbiting Laboratory kit in 1/72 scale. See the other version here:
The hatch is now part of the fuselage; it may be possible to cut it open (carefully) if desired. The cockpit windows are inset and solid.
The rear engine section is attached to the body with sprues. Careful trimming of the sprues should allow a flush fit, as seen in the built model linked below.
A full build from the shapeways parts is at: https://www.frankhenriquez.com/scale/mol-re-entry-vehicle/