You can never sell that bike. It is a vital link to your past and your dad. Those things re ir-replaceable. You owe nothing on it. I have a few bikes and an old MG TD that were either close family members vehicles or have a link to my past and will be in my collection till I die. There is no replacing those feelings and memories you get when you take one of those vehicles for a spin.
Congrats and just pick away at it to get it sorted. Resist all the high dollar mods to 'improve' it and just focus on making it a good reliable roadworthy bike.
Key to that is just going through the electrical system and cleaning all connections, then using a GOOD battery (AGM) and a tender. Then putting non-ethanol fuel in it with some stabilizer. I also use octane booster and 2 stroke oil at 100 to 1 to keep everything working smoothly. I also drain the carbs if the bike will sit for more than a few days. I've not had to touch anything at all on my bike in the 5 years since I restored it, other than oil changes and lubing. And it's 100% stock/original.
