understanding quarantining systems

When I set up my DT I'm pondering the idea of going ahead and setting up some Quarantine tanks at the same time I'm thinging of finding 2 10gallon tanks I can put on a single stand and running small AQ on both of them and leaving them barebottom with no rock or sand in them, I'm wanting to keep one for inverts and corals, and a seperate for fish in case the need to treat them for anything. I'm planning on Dipping all my corals before they go in QT and keeping them in there for approx 3-4 weeks. My question is if I go ahead and set them all up at the sametime will I be ok to go ahead and start Quarantining my stock for my tank, I know I'm going to need to do alot of water changes In these in order to keep the nitrate down but these tanks shouldn't need to do a full cycle like a main tank should they, since only going to run mechanical filtration.

also another question, regarding lighing on them. On the fish only I'm thinking I'm going to run just a standard n.o. light fixture, On the coral on I'm thinking maybe a 2 bulb T5 unit. That should be sufficent shouldn't it.