eea fm with fixed term QP worker

[Sisyphus17]

Hello all!
First of all I want to congratulate all of the people behind this Forum, and thank them, as this site represents a resource that literally changes and helps people's lives.
I am writing as I am a European citizen, I work in TV so I am always on fixed termed contracts that lasts normally 2/3 months each. I am PAYE normally, not freelancer, so I consider myself QP worker (although I am also registered with the HMRC as self employed for the occasional freelancer gig). During one of those PAYE contracts, a couple of years ago I applied as Qualified Person and got my card, and now we want to apply for EEA FM for my wife (we just got married but been together for years, she is from outside the EEA, she is here now under a valid visa but we wish to switch to the EEA FM as it seems more secure).
I am working at the moment, and sort of continuously worked (with gaps of about couple of weeks) for the past six months so hopefully we'll get the EEA FM card. My question is, if we get it say for 5 years, will I have to notify every 2/3 months the Home Office of my change of status and will that effect her residence status each time?
In other words, and more importantly, if she obtains a 5 years EEA FM residence card, is the card (and her status) locked for the 5 years or she can actually lose her residency and working rights depending on my change of status: i.e. while I am in between job and she is unemployed do we need a CSI to cover us both for those stretches? Or if I am unemployed for more than six months is her residence card automatically curtailed as I am not exercising treaty rights anymore?
Lastly, could I confirm that even if I were able to successfully apply for EEA PR myself next year she will still have to wait another 4 years, and be here as EEA FM for five years (she has lived lawfully under student visa, tier 4, in this country for about 4 years to this day but I don't think that counts unfortunately)?
I have been looking for answers in other posts but because my work situation is quite specific I found it hard to locate information that applies directly to our case, so I would be immensely grateful to anyone who could shed some light on this.
All the best!