Love the new additions. Despite the incredible stuff you've done in that brewery I think one the best lessons has been this: befriend an HVAC guy. Guess I'll be adding inoperable commercial fridges to my craigslist feeds, and start inviting my friend's step brother (who happens to have just graduated HVAC tech school..) over more often.
And that hop spider looks really promising, and even better, advances towards everything possible being stainless! Let us know how it works out.