Tell me at least those are Canadian dollars? Anyways, Citadel paints are not wallet friendly, have you made a cost comparison to Vallejo Model colors yet? I like Vallejo because they are cheaper and I also prefer their dropper bottles. I still use Citadel Shades though, they're simply the best. Although Army Painter's Quickshade Inks comes in close second and are much cheaper.
But you're right in wanting to avoid too specific one time colors.
Let's see for the officers... They introduce flesh for the first time? Some skin color + Reikland Fleshshade are essential paints for your arsenal, so there's no avoiding those. For the uniform, decide if you want plain grey or colored grey. Because, let's say you want a greenish grey: Ok, figure out what green you're going to need in the future. For example Trandoshan Hunters' scales are probably going to be green. Sorastro uses Castellan Green for those and also for Boba Fett's cape. It's a nice 'natural' green, which you'll be sure to find lots of uses later on so it's a safe buy. Now, make some mix of Standard Grey and Castellan Green on a palette and I bet you'll get a pretty authentic looking drab uniform green.
As to the uniform's wash, diluted Nuln Oil is OK if it's plain grey or dominantly grey, but some Athonian Camoshade in the mix wouldn't go to waste. You'll need it any time in the future where you want to shade green. It's an earthy green, works especially well with the aforementioned Castellan green. All of the basic color washes are pretty future proof, you won't regret owning them. Drankenhof Nightshade for blues, Carroburg Crimson for reds... Anyways, if you do buy a colored wash, do mix it with Nuln Oil, just like Sorastro does in the video.
When it comes to highlighting, although pure white isn't always the best answer (for reds for example), mixing it to the the skin- and the uniform colors should work fine, so no need to buy separate highlight colors.
The only color missing is blue for the badge. It's so tiny detail you can skip it if you want, but on the other hand you're going to need some basic blue in your arsenal eventually anyways, so pick one up.
As to the glazes, I love glazes, they can be great, but also far from necessary. Skip.
So, what, 4-5 new paints? All of which will find more uses in the future.