Any idea where the battery or batteries will be mounted ? Sounds like an interesting project
I have a few thoughts on this. Most important is accessibility and weight balance.
My preference would be between the frame rails between the axles. This keeps the weight centered and low. The exhaust will be gone so there is plenty of room on either side of the driveshaft. Alas therein lies the challenge with this location. Getting a strong frame to mount the box might be challenging. Once I get the exhaust out, I’ll start investigating.
The second and most likely option is to split the pack between the engine bay and where the gas tank was/is. Plenty of room, access, etc... but now you are hanging outside the axles.
Either way, they will be fairly invisible and not inside the cab. The Lithium Ion packs give you tons of flexibility.