A furnished apartment costs anywhere from 60k-210k per year.. It all depends on location and bedrooms. Marina is expensive but location is pretty good. Have a look at
https://dubai.dubizzle.com/ under the property section to get a feel for prices for apartments, villas and cars etc
Villas will cost you from 110k (2/3 bed) and up. Average 3-4 bed in a good location now costs 135-195k depending on quality/popularity of the area.. Cedar villas in Silicon Oasis is where a lot of the EK guys used to stay but now that they have almost all been moved, has a lot of empty 4 bed villas but they going for 185k per year.. Take into account the bigger the villa the bigger the DEWA bill in the summer... For a 3 bed apartment expect about 1500pm during summer and 600pm during winter.. For a Villa that goes up to +- 1000pm for winter and 2500/3500pm during summer...
Buying groceries and cooking at home with decent quality stuff for a 3 person family shouldn't cost you more than 1500pm. A good car which will cost you say 100k will be about 1800pm in repayments with a 20% deposit. Insurance is paid yearly and should be around 15-3500 depending on type of car. Mobile bill depends on pre paid or contract, but if you want internet at home (if not provided as part of rent) its better to go for a bundle deal which should cost about 600aed (tv/20gig interntet/land line).
Costs start to increase with kids.. School fees should be covered for most schools, but you will probably end up paying out of your pocket for books/uniform/ after school activities/trips/ etc etc.
A trip to the water park will cost 2-300aed per person.. Legoland opening in October a similar price and World of adventure (marvel comics etc) the same.. APC membership card is +- 180 pm to get discounted access to beach clubs and discounts at restaurants etc.
As for command, you need 1000hrs on type, 4000 total, 2 good marks in 2 consecutive simulators (not including your final sim check). Then you can apply.. Then you need to pass an interview. Then 4 sim sessions (2 training 2 tests) and then 20 sectors of line training.. And yes, only 10 of the last 24 guys made it through that..
As for applying at Ryan air first.. Remember Airlines are all about seniority numbers.. Going to Ryan air just to get command to join as a DEC later at FZ will put you 2 years down the line of seniority, which might have a bit impact on your roster/leave bidding etc if/when you do eventually join FZ
Thats my 1 fils worth.