CR85R 2004 front end for 50$

to be fit on my girlfriend CRF150F 2011
So I've got a lot of question, if some can share his experience. Tone consultant give me a lot of answer, but if some do it otherways feel free to reply.
150F or 85R brake line, front caliper and disk?
Can I use the 150F steering stem bearing ?
Best way to fit the key switch (except a Regner top clamp) ?
Front fender and fork protector, 150R one gonna fit ?
150F front number plate still fit well?
For now, I know I must press out the steam shaft
Collar kit for my 150F wheels
Probably a caliper bracket
.40 Fork spring (My girlfriend is a novice 120 lbs)
I miss something ?