1) You will most likely be bonded as a type rating with 0 hours is basically NTR.
2) Substantial difference as it is in most airlines between FO and CPT
3) Factorized hours only apply to hours earnt before WZZ, all WZZ hours are factorised as 1 hour so it depends on how many hours you do per year to reach your 3000 to be eligible.
4) How long is a piece of string? Recruiting like the rest of wizz is chronically understaffed and overworked.
5) Would those pilots want to come back to the absolute mess that it is working for wizz?
2. Base transfer depends on your working rights etc and if the base needs crew. Could be 3 months, could be 3 years, if the base you're at is chronically understaffed could be stuck their permanently.