No, pretty sure he wants you to buy a different switch for the dash. These are nice dome lights but they are definitely not NOS FJ55 lights as they don't have a switch. I searched for the cover to see what other dome lights used the same cover as the FJ55 and came up with these matches.
Japan10/1979-08/1986
TOYOTA LITEACE TRUCK, TOWNACE TRUCKKM2*,TM20,YM2*,CM2*81-21: INTERIOR LAMP
Europe, General10/1979-07/1985
TOYOTA LITEACEKM20,YM2*,CM2081-21: INTERIOR LAMP
Europe, General02/1977-10/1982
TOYOTA HIACERH11,2*,3*,42,LH11,20,3081-21: INTERIOR LAMP
Japan05/1982-06/1985
TOYOTA HIACE QUICK DELIVERYLH2481-21: INTERIOR LAMP
Japan08/1985-04/1995
TOYOTA HIACE QUICK DELIVERYLH8*81-21: INTERIOR LAMP
Japan03/1969-06/1980
TOYOTA LAND CRUISERFJ4*,5*,BJ4*81-21: INTERIOR LAMP
Europe, General03/1969-06/1980
TOYOTA LAND CRUISERFJ4*,55,BJ4*,HJ4581-21: INTERIOR LAMP
N. America03/1969-06/1980
TOYOTA LAND CRUISERBJ40,FJ4*,5581-21: INTERIOR LAMP
It's probably worth the price just to get the cover (assuming you need one) but calling it a NOS FJ55 dome light is a bit disingenuous.