Who needs sports?

The nail biting is here. I have this frame:

And I have these 2 pieces that I want to put in this frame:

The problem is pretty obvious. One block of the frame is not like the others. One block needs a piece of its own. I found a pattern that will work (also from Yusai Fukuyama's book). 

But there's a problem. I did the other 2 pieces in a yellow linen thread and I wasn't sure if I had enough of it for another piece. I could do it in white and put it in the middle but the yellow one that's open in the middle called middle so what can I do?

Sometimes you just have to go for it, right?  

So I've started and got the middle flower done and I'm exactly halfway around the outside flower. I'm working the filler at the same time I'm working the outside. 

Eleven paid of bobbins. 

I have thread on all the bobbins but I don't know if they will make it around the second half of the outer flower. Of course, I can always add thread if I need to. Here's how much extra thread I have left to work with:

The race is on.