After ~3 years boas should only be fed once every 3-4 weeks, so that's not an issue. They're hard to starve.

Try to keep humidity around 75-80% (this hygrometer is great) when they're shedding. My girl goes blue first for about a week, then clears up for a week, then sheds. Bathing shouldn't be necessary unless the shed is shredded and incomplete.

Sistema 1870 Klip It Collection Rectangle Food Storage Container, 236 Ounce https://www.amazon.com/dp/B00284AG5U/ref=cm_sw_r_cp_api_oR38BbBVG7BAC

Spanish Cedar Cigar Tray, Adjustable Divider, Fits Large Humidors, Made with Solid Spanish Cedar, by Quality Importers https://www.amazon.com/dp/B00B9234HE/ref=cm_sw_r_cp_api_XR38BbE0CTEK8 X2

Boveda 65% RH 2-Way Humidity Control for Cubans, Oily Wrapper Cigars & Wooden Humidors, 4 Count 60-Gram Packets (Humidifier/Dehumidifier)-by Boveda Inc https://www.amazon.com/dp/B077KVC1VY/ref=cm_sw_r_cp_api_oS38BbFS9D5MD

Inkbird ITH-10 Digital Thermometer and Hygrometer Temperature Humidity Monitor https://www.amazon.com/dp/B0140UC9XQ/ref=cm_sw_r_cp_api_MS38BbMD8GPNV

That should do it, cedar trays are optional but I found that they helped keep things organized