GPA from undergraduate degree/TESU?

[pws]

I was organizing everything to start a BA in English at TESU, until I discovered the issue with GPA. 

My plan is to get a BA in English, to then do a MEd. I have a bunch of general credits from a brick-and-mortar college that I'll be able to transfer to TESU. For the MEd, the requirements are any undergraduate degree and a minimum GPA of 2.8.

For the things that I'm pretty sure about (please correct me if wrong):
- At TESU, all transferred credits don't count for the GPA
- Capstone does count for the GPA
- You can take TESU courses, which will count for the GPA, but this will cost around $500 per credit

For the things I'm not completely sure about:

• With the official transcript sent to the university for the MEd, what will they see and probably think?
  
• Would they be able to see that a portion of credits were obtained online (Study, Straighterline, etc.)?
  
• Would trying to get a GPA based on the capstone, coupled with a few TESU courses probably be pointless (and very expensive)?
  
• Are there other ways to get a GPA from the TESU BA in English?