Which of the big 3 are cheapest if you have all credits required to graduate already?

[Randyb100]

I plan on taking Intro to Python and Software Engineering at Saylor. I did have to request permission for Software Engineering, but it does transfer in as an upper-level course.

You don't have to request permission from TESU to take anything - especially courses we already know the course equivalencies for.  That's just not a thing at that school.  The person you spoke with there may have decided that you needed to ask for permission, but you don't.  That's not a thing there.

For that particular course it is. It lost its ACE accredidation and requires special approval before being used. You can check the Degree Forum wiki and someone else commented that it had to be requested.

Anyways, that's only $10 for the two classes. I can get a discount at Study.com and finish the other 2 in a month, hopefully. I'm planning on getting all 4 done before doing my final term in August. I'm waiting until August because their summer scholarship application starts in June and ends in July for the August term. I only have $2100 left of my Amazon career choice for the year, so I need another $1000 to cover the cost of those 3 courses left to graduate. 

I'll then have a bachelor of arts in liberal studies with a concentration in computer science. I may come back to finish an actual BS in computer science later, I don't know. I'm planning on just moving on to grad school if I can find the right program and can get enough funding.