Is it a good idea?

[dfrecore]

For EC, you need 31cr, all of them UL, none of them RA, so they're a good option as well. You can get all the UL from Study.com.

6 UL courses from the Liberal Arts
2 UL from Free Electives
The UL Cornerstone
The UL Capstone

Here's what you'd have to take at Study.com:
BUS 318: Management Ethics
BUS 313: Organizational Communication
ENGL 305: Advanced Technical Writing
BUS 307: Leadership and Organizational Behavior
PSY 311: Physiological Psychology
PSY 316: Advanced Social Psychology
and then any 2 UL courses that don't overlap (so Business or Computers)

I think this will probably be your faster option, and EC is cheaper than TESU by $1,354. So that's a win-win there. You can enroll, take the Info Lit and Cornerstone courses while you're taking your remaining UL courses, and then take your capstone.

You can also take UExcel Exams for UL, but honestly unless there's one that sticks out to you as easy, they're going to be more expensive than Study.com. But it's up to you how you want to get those UL credits.