'69 C-10 lwb fleetside

[Sixteen Tons]

First real project truck......... Straight 6, 48,000 original miles, two owners, mostly barn/garage kept, rusted rocker panels (first task), runs like a champ and paid next to nothing >1G! Gonna be a semi-regular daily driver so I just want to keep her hummin' along without much fuss. Mostly content with keeping it as I got it, 100% stock, but that said, looking for some suggestions/thoughts on what would be some good mods, upgrades to start with to keep it (and me) happy and on the road.