My son has decided he want to try some video editing, videos will be from a Canon 6D MK II, iPhone and a Mavic 2. I have built pcs but it has been years ago and haven't kept up at all with the latest. I don't want to go crazy and I don't need the latest greatest hardware. I would be fine with used parts as well so I would appreciate some bare minimum recommendations on parts, what I need to get or higher.