Lol. I think you did fine, she should not be mad. If she is, my experience can serve as a cautionary tale (and hopefully as a good contrast to your wise thought process).
When I was in the same position, planning out the lights on a 120 x 36 x 30 tank, I decided to spare no expense. The tank was pricey, so why not get the best lights?
My first plan was to go MH and T5, so I ordered 5 x 250W MH fixtures along with bulbs and ballasts and 8 x 60" T5 retrofits along with bulbs. A little times passes, tank is still dry. I start second guessing myself and decide to add 5 x AP700 to the lighting. After pondering how I am going to fit the MH and AP700;s over the tank, I decide to discard the MH from the design. Later, after measuring the light cones on my frag tank from the AP700, I realize that the T5 retro reflectors will only allow for 1 unit to be mounted between the AP700 pucks, and the AP700 will have to be practically touching the T5 reflector to not lose any light from the AP700. Queue the introduction of the Aquatic Life fixtures to the market. Ah, just what I need. So I order 5 x 24" Aquatic Life hybrid units along with 20 bulbs and discard the retrofits from the design. Tank is still dry at this point. More recently while browsing R2R I see a reference to Stuart Bertram's tank. Hmm, he uses a lot of AI HD 26's for a wall of light. After noticing that AI lights are on sale for summer .... I now have 22 x HD 26 units that will be going over the tank, and plan on taking the T5 modules from 2 x 48" Aquatic life fixtures to run between the grid of HD 26's. Each end of the tank will have a grid of 3 x 3 units, with the centre of the tank getting 4 units to work around some 8" braces that are slightly off centre. As expected the tank is still dry ...
Sadly if the Philips Coral Care were for sale in North America tomorrow, I would have 5 of those the very next day, and no doubt, my tank would still be dry
See you did good considering!
Dennis