MTG Salvation

So me and my friends want to create Vintage Cube IRL using proxies for cards we dont have, like Power 9. We actually never have done cubes before, and I rather not have it 100% random, as the way MTGO does it makes the draft and games super fun

I believe the packs on the MTGO cube contain 15 cards cards chosen at random from the pool. Which is how they should be built, IMO. 100% random, all the time.