I’m pretty sure $300 worth of LED bulbs will work just fine. Getting to 50,000 lux or so in a room (which is some equation with lumens and the volume of the room, a small apartment should be easy to make bright as day vs a warehouse). It’ll only cost as much as running a few hundred watt bulbs incandescent bulbs did back in the day. The sun isn’t magic or anything.
Then get the good daylight-simulator LEDs from Yuji[0]. If the spectrum is still too incomplete for your tastes, I'd recommend a carbon arc lamp, perhaps with a spectrum shaping filter to get up to 5600 K CCT.
