Here you go! Not finished yet, and the heat tape is a little ugly. I bought some super sticky heat tape that left lots of adhesive when I needed to remove and reuse. Not suitable for the rack, as it is literally everywhere and sticks to the bins. But was just fine for the incubator!
And as for the press and seal. I got airtight boxes for my eggs. I am really not comfortable with humidity getting out and coming in contact with my heat tape and probe. Also, I had fruit flies get into my unsealed egg box and lay eggs in the wet substrate. A sealed box is just my preference.
And I noticed your therm probe in the egg box. I may have had a bad experience/older probe, but the humidity shorted out my probe and made my therm go haywire. I am using an independent thermometer to measure temp in the egg box.