@Bobby,
I havent got any compiling knowledge, but i know that another useful Recovery Mode (Backup function, …) has already been ported on the FP.
I mean the ClockWorkMod (CWM):
Download:
More Information:
German:
https://de.m.wikipedia.org/wiki/ClockworkMod
English:
The porter of this app also ported CyanogenMod to FP. There might be a reason, why he didnt port TWRP. 
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