Without the extra two frames they will probably build crooked comb if you're not careful. Get the two other frames in as soon as you can. Sounds like you had a real circus getting them into the nuc. They can fill a ten frame deep full of foundation or starter strips in a week if they try as you saw. Watch the nuc closely or you may be chasing a swarm again in about 30 days. I had a swarm do that to me, swarmed again about 30 days after I hived them. Got honey bound and I didn't realize it until after they swarmed. I did manage to catch the second swarm though.