Dude I suggest to join a freaking league and exchange with leage members instead of opening up a topic for every single question that you have. More efficient for you and less eye bleeding for us - win / win.
Neither is mine and no body has tried kt yet but knowing rf it has a low succes % so assuming u need a lot is a given. So if u try to farm for 50 tries a piece and then try to craftcit u will know. Even if i tell u its 20 tries and then it turns out u didnt craft it in 20 tries u will say its my fault. So like i said farm a 100 tries and go for it
Wel u wanna gamble on 1 try or 5 tries Im pretty sure if even try 10x it wont be enkugh. So be smart just farm