Yes. The originally spec'd relays (Rapid 60-1310) were fine for both positions.. I would socket mount them.

The RS699-6869 is overkill with the inbuild LED etc.

The RS619-3013 would be fine for Relay 2, but as a PCB mounted device its hard to use.

If price is critical then consider using Rapid 60-1667 in sockets. While these are only rated at 240vAC/5A and 600VA for the switching rate you will use them for they'll be fine and if you're paranoid you could wire the contacts in pairs.