71 suburban options

[75gmc454]

I am buying 71 suburban. It has several odd options. Just wondering if any of you have seen any of them before. I dont have a good picture of the spid, so I will list the options here.

model=ke20906 1A68AF REAR CENTER SEAT BELT
1A80AC CENTER AND REAR SEAT 1F60AH HEAVY FRNT SPRING
1G50AG HEAVY REAR SPRING 1M20AK 4 SPEED
1RQ4AA 875X165X8 TIRES 1RQ4AF 875X165X8 TIRES
1RQ4AG 875X165X8 TIRES 1V01AG HEAVY DUTY RADIATOR
1V76AA FRONT TOW HOOK 1634AG BLACK VINYL TRIM
9461EA FRONT WHEEL LOCKING 9638AA PERMANENT ANTI-FREEZE
9640AJ RADIATOR SIGHT GAUG 9745AA MAGNETIC PLUG UNIT
9745JA MAGNETIC PLUG UNIT 9745KA MAGNETIC PLUG UNIT
9745LA MAGNETIC PLUG UNIT 9868AA CIGARETTE LIGHTER
9893AA RADIATOR GRILLE GUA 9907AB TAG UNIT
9909DA VEHICLE DECALCOMANI 9909SD VEHICLE DECALCOMANI
9958QA UNDERCOAT UNIT 9964BA ASSIST HANDLE UNIT
9964CA ASSIST HANDLE UNIT

What is the Assist handle unit, vehicle decalcomani, magnetic plug unit, and tag unit. I think it must be some kind of government vehicle.