Building COF structure

Hello Again!

 

I am still trying to build the cyclodextrin COF in MS form this paper-  

I built the crystal lattice parameters (for a P41) based on this paper then pasted in an optimized beta-CD which brings me close to the structure (alpha helix packing inside the unit cell). 

However I am having trouble connecting the TPA ligand in a way that gives me the correct structure to generate the correct pXRD. 

Thank you in advance for anyones help!