'69 Sidemarkers w/o lights

[69TowRig]

Hello all, gotta question for you.

My '69 K5 had two broken side markers on it, so I picked up replacements from YearOne. The replacements had spots for bulbs in them, but the factory sidemarkers do not have any lighting in them, they were sealed off. I went ahead and installed them, and will find something soon to permanently seal them with, but my question is:

Who sells the sidemarkers without light sockets? I replaced the pair on the passenger side but I want to do the driver's side as well. I rather buy the right part than have to mod the parts I buy.

Thanks in advance.