I'm almost 100% intent on making the packs bottom loading, and the "body" will be semi-permanently attached with screws. Simple idea, but complicated in execution only because I am not sure what I want it to look like still. It might not end up looking like anything, and I'm ok with that too. As long as it ends up looking better than it does nekkid...
I only got the red X for your link, but I know what you're referring to
