I think a little isolation might be the solution.
You need to look with-in and discover why you have not been able to deal with............"Still my temporary rack, 4yrs now." I know, I know it's been difficult to confront this situation but the process is just what you need. A new direction that will improve the current equipment's performance with endless possibilities(tweaks)footers, shelves, etc, etc!!!!
This should allow you to at the least maintain your wine budget, keep your mind occupied for months thus avoiding depression untill your system's ready for new kit.
Then re-post this appeal!!