"So, I have been searching for a way to get TWRP working for bloody ages!
Every single Image, Tar and MD5 won't work apart from these ones!
I found these on another thread but its buried in other replies so im here to share it in...
luckily for you Chainfire developer has already kind of fulfilled what you are after. :)
It's called LiveBoot and you can it from the playstore at:
From the play...
This thread is old but the answer can be found herehttp://wp.chmurka.net/?p=479
As to what you can do is install SafeStrap modified by mentor37 which makes use of the WebTop partition and doesn't slow down over time.