I bought all the gear on my own already. Gonna try it myself but just fyi all, ebay has some fairly cheap headlights.
I did a quick search and couldn't find the company I bought it from but they still have it on their website at am-autoparts
Toyota 4Runner Headlights & Parking Lights at AM Autoparts
I have no affiliations with them.
Spare headlights are the way to go!
Edit/update: the company has good email responsiveness (within 1 day) but no phone number contact and they got my order wrong... twice... sent me passenger side non-smoked bezel. If that's what you're looking for then they have it! They also compensated me for the trouble.