Hobbyist vapour phase reflow ovens exist although not cheap: https://eleshop.eu/vaporflow-275-vapour-phase-reflow-oven.ht...
Main issues is solvent recovery: as another commenter pointed out, Galden is very expensive, and it is also extremely greenhouse inducing and we were not confident in our ability to recover it completely, especially at "scale" (100 boards per month or so).
In our case, we picked a hot-air convection oven, which, while not as good as VPS, is still a lot better than IR at not burning components. Our main challenge is always space, so we went for a production batch oven which already has more throughput than we need for us to get to profitability.
The plan is to upgrade to a long and big conveyor oven once we move to a bigger facility, these are quite cheap and they are compatible with a fully automated production line.
You can buy the exact same products if they have enough in stock on either platform so price should be about the same e.g. https://www.crowdsupply.com/mouser-electronics and the opposite https://eu.mouser.com/manufacturer/crowd-supply/
They might have big margins on generic products but nothing obvious to me. FWIW bought uSDR with antennas just last month.