You can use mini tweaker for altering the stuff in the sim
http://www.delraydepot.com/tt/sh3sdk.htm - grab the tweak files too
Changing the name NDD_Clemson to NDE_PB102 will need additional hexing
If you keep the letter count the same its a straight replace job
Just a tip
If you rename the rudder\propellers as well then the ship usually wont move due it losing its tie in with the sim
Am only a noob at hexing myself and there are far better people on here than I