Ok. Three things I want to ask... Maybe more, I don't know and we'll see.
First I have to ask, how much training time do you have under your belt? Are you sure you can handle hard work pretty much everyday?
Why isolate the core?
Simple core (because I am vain and a heathen and enjoying core isolations and the resultant aesthetics)
When there
aren't any resulting aesthetics? How your abs are formed (4, 6, 8, 7, W/E pack) is genes, how visible they are is BF%. You gain no resulting aesthetics from isolating them.If you enjoy them... Well, Why not do L-Sits and Flips? They make your core sore as hell.
For stretching, you'll need to do a lot of it, and often to get flexible enough for what you want it seems. At least 20 minutes a day, holding each stretch for a little less than 30 seconds will see your flexibility soar. (lol, almost punned it as sore. [Which can also happen if you hold a stretch too long])
I think that's about it for now. If I think of anything, else, I'll be sure to post.