The most expensive part in this assembly is the Gasket Kit A (nas).
The most reasonably priced component used on the Trx300fw Fourtrax 1997 (v) Usa New Hampshire Only Gasket Kit A is the Washer Seal, 6mm.
The fourteen Trx300fw Fourtrax 1997 (v) Usa New Hampshire Only Gasket Kit A component parts are all listed in this schematic.