I haven't used the chocovision and don't hand dip. Is it awkward because it holds so little chocolate and you have to keep melting more, or is it about the workflow?
I have a food warmer that I bought for bulk melting, only used a few times. IIRC, it melted fine on low, but then I found an old D&R melter which goes lower and has a temp dial vs low-high. I'm trying to remember if I even used the D&R last busy season, would entertain offers on either one, pick up in Seattle.
This says low is 140, which is a bit high for chocolate. Someone else can explain how to make it go lower (pid controller something something?) https://www.restaurantsupply.com/winco-fw-s600-1500-watt-countertop-electric-food-warmer-fits-6-deep-pan?keyword=&gclid=CjwKCAjww7KmBhAyEiwA5-PUSjbJrnMBP4JoiXzZOIV03e_TkbZbW_4pR9xeHFjC-71VD6O0RIx2AxoCn5QQAvD_BwE
The D&R model, it's just a melter. Not insulated like the mol d' arts but if you just want chocolate melted & ready to add to your temperer ... The one I found was under $100 & missing the side brackets. https://dr.ca/collections/chocolate-machines/products/tf20-chocolate-tempering-machine-20kg-44lbs
Either of these holds up to 20 kg, or you could use smaller pans/inserts.
For 2kg or less I use the microwave on 40-60% power and rarely scorch it.