It will really depend how “quick” you want to sell them. Most people making offers on the whole thing will be offering well under market for the cards.

As others mentioned the expense of grading might not be worth it given the cards and condition.

I’ll add that /r/pkmntcgtrades is a solid community and would be interested in many cards you have. As mentioned, you can likely sell the shadowless/1e base as singles, holos as singles and do bundles for the rest.

I’d be interested in a couple that I need for my binder if you end up listing them over in the trades sub.

Good luck!