Welcome, both to LAF and to wargaming.
Great choice going with Pendraken and 10mm, my favourite current manufacturer and my favourite scale!
I’m afraid I’m at the other end of the country.
I’d have to say O Group, whilst a great game, isn’t the simplest set of wargame rules, it has a lot of detail to cover all the areas. Do watch some of the videos, while they aren’t how to play guides they will at least give you an idea of the flow of the rules.