The AD truck series was from 1947 2nd (second half) to 1955 1st (first half).
Fuel tanks under the bed was 1947 2nd through 1948. Only 1-1/2 years.
?? You currently have:
1992 V6 4.3 TBI
700R Transmission
Pacer Front Crossmember
Z link rear suspension
?? S10 rear axle
Assuming you are not planning on removing the body.
There are new front suspension bolt-in kits.
There are modern improved bolt-in rear leaf spring suspension kits.
Add front and rear sway bars.
The original AD steel gas tanks can rust inside with today's Ethanol gas.
I would find something Ethanol tolerant.
30 year old engine and transmission. Time for rebuild or replacement?
Factor this in before buying new kits.