I have no desire to mix my own, I just don’t have time to start a new project. Does anyone offer a service to have it made and shipped?
DIY isn't for everyone for many reasons. Though making one flavor could be fairly easy once you have a good recipe. All you would need is the flavors and the base. The base would be the nicotine amount and the ratio of PG/VG, like 6mg nic, 30/70 PG/VG all mixed together in 1 bottle. There are places to buy the ready mixed base, LiquidBarn.com comes to my mind.
You could then mix all the flavors following the recipe needed in 1 big bottle (500ml-5 liters), then when you need to refill your smaller bottles, 60ml or whatever size you use, mix the ratio of flavor with the pre-mixed base into the smaller bottle. Or you could mix the flavor recipe and the base in one big bottle then refill your smaller bottles from that.
I think I saw Junkyard Scotch uses a 50/50 mix of PG/VG. Once you do it a couple of times the mixing is fast and easy. Maybe start small until you find what works best for you.
Should DIY turn into a hobby, like with me, then things can get weird. Flavors become a passion (addiction) and you can never have enough flavors or the right brand of the same flavor for a cool recipe you found or are tweaking to perfection. Even with my flavor addiction, I enjoy DIY a lot.