no not factory.
1968
1968
Assuming you have the 4.9 (300 CID) engine, it takes a group size 56, 550 CCA.
Yes
Yes
None came with seatbelts in the back, And only if the car had belt anchors, would they be in the front.
The Ford 302 engine is a very popular one that was used in many Ford cars from 1968 to 2001 including the Mustang, the 1968 Ford Shelby GT 350 and the Lincoln Continental town car.
I have a 1970 F100 and it has two lap belts that look original. I don't know if it ever had one in the middle, but I doubt it.
The F100 Laptop is made and manufactured by Toshiba although it has come under some scrutiny regarding consumers complaining about manufacturing faults.
They were not stock installed in 65. You can get kits to put them in.
When pigs can fly, that'll happen