I’ve shot this Heraeus incubator at ebay for 200 Euros and than added a DIY perforate metal cage with UV LED stripe. The shelves are made from 3 mm acrylic.
The incubator has all you need: temperature preselection up to 70 degrees Celsius, thermostate, timer…
This also had me looking at eBay, currently looking at this type of thing although I think these stop at 45 degrees C, still looking for a hotter one although for such little cost it’s better than no heat.