Hey Brendan,
We've been doing a lot of customization for a client of ours (Forged.com). As a result of this build we were fortunate enough to be called Shopify experts. Love the cause behind your site, would be happy to take a look if you are interested.
If you are interested it would be great if you could send us your contact info on the form at the bottom of our site or send an email to the listed addresses.
Cheers!
Jim