When comparing headlight housings, just read through the issues people mention and you'll probably be able to avoid most with a little preventative maintenance before installing.
Example: I just ordered some cheap AUTOSAVER88 headlights off Amazon for $156. They rate low (3.5 out of 5) but since this is for a retrofit, I'll be adding new butyl sealing tape and Morimoto breathers which should solve the majority of issues. If not doing a retrofit then I'd just run some silicone around the edges and replace the breathers with a couple from Morimoto or TRS for $9 which is still cheaper.