You'll have do deal with the opto for this project. It's easy, big legs and only four of them.
I ordered prototype boards, if all goes well and I don't have any issues, the thru-hole one should work as well, it's based on the same schematic. I did find that Mouser has some of the thru-hole relays in stock, nobody has the SMT ones right now, so I'm glad I have enough to finish my RR.