Serverpartdeals.com for refurbished HDDs. Fractal define R5 case for the 6 14 TB HDDs and 2 SSDs for cache, a uUSB thumb drive to run unraid. Some ram, a PSU, a Mobo, and a very old quadro GPU, only a couple grand in parts and your obsession is fed, for now.

I switched from Moneydance to Moneyspire a couple years ago. Similar functionality, and I think it looks better.

No, a vacuum is a lack of pressure. Anything that is at a lower pressure than the surrounding atmosphere will act the same as a vacuum.

Look into setting up Mail in a Box. Hosted on a server (I use digital ocean) your own domain name, as many users as you want. https://mailinabox.email/

I use an Asus 86RU running Asus-Merlin. It ticks all of your boxes.

My preference is pineapple, ham, and jalapeños. You get that spicy-salty-sweet-greasy-carb thing going, and it is AWESOME. I call it a Tex-waiian pizza.

I believe the leather is there to provide additional grip. Unlike regular cold weather gloves, motorcycle gloves that palm grip is critical to safe operation. I remember seeing some gloves that had a rubber/silicone type palm coating, but I can’t seem to find them anywhere.

Isn’t there a flow switch? Mine has a Flow Switch as a safety feature that came with the cell. While I understand what you are trying to do, it is not safe for you or the equipment. If the cell has been on any significant amount of time with no flow, you have likely damaged it. See this Article

It looks like they all at least have leather on the palm for grip.

No