Hi, First I need to say I assume most guys have a decent tool and and can do most of the basic mechanic 101 stuff at home. No matter what, you will need a repair guide like a Chilton's Manual.
if I had a Bronco like yours sounds like, I would get it running and road worthy, meaning tune up, brakes (very important), grease, oil, maybe flush out the gas tank, etc. Running and driving so you are comfortable and not worried about making it home.
Then enjoy the Bronco for a while. We all love our Broncos. People all over love the Broncos. You will soon see.
Take everyone in the family out for a some rides.
You will meet many people who all have different opinions on what you should do to your Bronco. Leave it as is, restore to better then new, bigger motor, turn it into Bigfoot.
The reality is it is only original once. I've had my 66 U14 over 30 years and I'm still learning about the unique early 66 only pieces.
We don't know if your great grandfather did any modifications.
Many guys here spend major money on their Broncos. Figure out your budget while you come up with ideas. Time is also a big factor. Some guys here have been restoring there Broncos for many years. That is many years of parts all over the garage and no seat time.
When I started my Bronco was a rusty crusty shop truck. No seat or back window. Barely running. So it was not a good Bronco for preservation. But it was always an attention getter. Now it is a restored driver. Check it out n my garage.
Become a contributor to the site for $12 a year and upload some pics.
Good luck
