Going full rando on my roadie -- dynamo lighting, front rack and Swift Industries bag, etc.

Swapping forks on from an old 15mm to a 12mm Roadeo Spork with internal dynamo routing. Part of me wants to do the whole thing myself as a project and to save some cash, but while I've swapped non-carbon forks with mechanical (caliper or disc) brakes in the past, I've never set up hydraulic brakes, and never messed with carbon steer tubes before.

I'm thinking maybe I should just have a shop swap the fork and set up the brakes, since it needs a tuneup anyway and I'd probably have to take it in to get the tube cut. Then I can set up the dynamo lighting myself because how much can I really mess that up?

Any thoughts from those of you who've done this a lot?