Congratulations on your new addition! Sounds like you are off to a good start and planning ahead! I agree with above, each bird is individual and you’ll end up tailoring it to work for you both. Personally my preference would be to find out what your conure is eating now, and provide that on arrival - to avoid stressing with changes in environment, cage, people and food all at the same time. Then after a bit of settling in, I’d start working on the diet. You’ll find that everyone feeds their birds a bit differently, and that you’ll find something that works for you.
I have 3 conures and all have different likes/dislikes (all were on a seed diet when I got them and were transitioned off). They all like different pellets, and all eat chop (mostly veggies, whole grains with a bit of fruit). I feed chop in the morning in a portion that they’ll eat all of it fairly quickly (mine is about a teaspoon per bird, but you figure out what they’ll eat over time). Mine always have pellets available. They get another portion of chop when I get home from work. If I had to guess, I would say that their diet works out to roughly half and half pellets and chop, maybe a bit more pellets. They get seeds, nutriberries, some nuts, little pieces of fruit, etc as treats.