Hey Frank! Welcome to the board! We are glad to have you as a member!
I am sure you will more information than you could have possibly imagined very soon!
Let me start by saying: I am no expert!
I think you have your lighting hashed out. The 4x65W should be just right! You are not over lighting that aquarium. Your D/N/D pattern is creative and quite clever, but I think works against your equipment. Maximize you lighting, don't hold back. I stagger my lights about 40 minutes and have no problem.
The only problem I can foresee is your lack of CO2, and I think you realize that.
You are running over 3.5 WPG. No CO2 and you will most likely run into some real algae problems. I can understand the initial fear of a pressurized CO2 system, but they are far safer than you can imagine. However, I understand that you might not be the only person in your household responsible for making decisions (
). You may be able to rig up a DIY CO2 injection system. try reading some posts by Wasserpest on the subject. better yet, drop him a PM. He is running DIY on a 100G! If anyone can give you some pointers on the subject, he can!
When you get a chance, post your water parameters. Let us know the pH, KH, GH, Nitrate and Phosphate levels in your aquarium. Hopefully, the gang here will help you work out a fertilizer regime also!