I most
If you can afford it, get an Epson or Canon that prints tabloid size. It's nice being able to experiment with different papers, and have the ability to print tests without waiting.
For outsourcing prints, I'd look at at these guys...
An unlock code for what? My Mavic Pro flies as well now as it did after the last firmware upgrade I allowed it to download load, maybe better as Superpatcher has been applied.