The structure.io scanner isn’t bad for the price… Sold with various apps and under different names as part of a package deal.
There are also the larger scale scanning portable units like the zeb-1 or zeb-revo (geoslam).
The precursor wobble stick version (https://confluence.csiro.au/display/ASL/Zebedee) was cool to watch but can’t help think it would have been a bit embarrassing to carry around (forgoes the rotating scanner system for random sweeping of the volume.)
Tons of these things are around now since so many devices are doing interior mapping/navigation.
The HP david structured light scanners are open hardware… but I’m not sure what they are charging for the modelling software.
Good luck!