Hello,
I am a full time IT Professional who cannot meet your requirements of making this app my top priority, but I have already developed a simple To-Do app that runs on both the iPhone and on the Apple Watch Kit and would sell you the code that you could then modify or reskin. I see that you have another listing that you awarded already, so this could be your back-up plan if necessary.
April 24 is quickly approaching, and it would be great to have something in the app store for launch of the Watch!
Best of luck!
Ian