I added 5 blue rams to a 54 gallon with more fish than you have. After three weeks I found eggs today (!) so it's definitely doable. What people would typically suggest is to have enough structure to break up their lines of sight, especially if you have two pairs or, even worse, three or four males. I'd try to set up stations on either side of your aquarium so each pair has a base distant from the other. My pair is definitely not appreciative of visitors right now, so doing that might prevent you from having to monitor the situation as closely as I'm having to.