This is the file set that I used to convert a stock Thundertiger Neptune to a DSRV Alvin look-alike. Parts are designed to mate to the stock body using high-strength adhesive, but still allow access to remove the body shell for maintenance or repair. 

Parts included: 

• Six individual parts for the manipulator arm

• Four hull sections

• Floodlight with surround

• Upsized dive planes

• lifting lugs

• Two Sail parts

• Operator's seat

• Vertical thrusters