Advice on photorelay type circuit

[zebeste]

Thanks for the confirmation. I'll probably be ordering everything from digikey, and use mouser as a backup. Digikey is where I found these, and although 400v is overkill, after plugging in some minimum specifications and sorting by price on a quantity of one, it came up near the top of the list.

Thanks again everyone for the help. I really appreciate it and learned a lot from this.