That sounds like a perfect plan to me

Heck if you're gonna use the established media and want to get it going early you could even try this stuff called Start Zyme. I used a whole bottle on my new 240g yesterday along with a fully cycled Jebo 865uv canister, ac110 and 2 other HOBs and it tested all zeros a few hours after filling it up. I haven't tried live plants tho because my fish would just tear them up (although I'd really like to) so its probably a good idea to get those going first