Wine cooler? and fridge?

Hi community, I’m new here, my name is Deniel.
I’m am looking to turn my old coal cute/room into a wine cellar. It’s a nice small area, but still big enough to hold 2-4 hundred bottles as well as maybe a tasting table and some chairs. I’ve read up on the basics, but could really use the advice of someone who’s actually done it. What are little pitfalls to avoid? Any tips or tricks? Anything that is easy to overlook? An experienced hand would be greatly appreciated! This is my first cellar and I’m just starting to expand my collection beyond my electric fridge style cellar, so I am a newbie, I am planning on a new Fr door replacement like on the https://refrigeratorfaq.com. Also I’m 25 and on a tight budget, so any money saving tips would also be extremely helpful!

If you haven’t read “How and Why to Build a Wine Cellar” by Richard Gold, that would be a good reference point.