Blades are awesome for lift..... definitely the way to go if your budget can stretch it...
For your budget you may be able to find a 2nd hand Blade 2 4.9 should allow you to jump in 12 mph+ wind.. BUT.. be warned it will give a lot of pull, and until you get used to it you should not go out in more than 10mph until you are familiar with the kite...
If the blades out of reach then maybe a buster, little devil or Firebee would sort you out...
You say you have flown stunt kite, that is good, what you need to do is learn to fly 4 lines kites and control the braking etc.. and be able to do this under power.. which is where it will differ considerably from your existing experience
Be warned though, that these are not toys and can hurt you if you are not careful. If this is your only kite than I would advise you to go for something smaller intead, since the risk is that you will put it up in too much wind because you do not have a smaller kite... remember that lift is proprtional to the square of wind speed, so going from 10mph to 15 mph gives 2.25 times as much lift, not 1.5 times!
The best bet is probably to try and meet up with local flyers and try a few things out first, and whatever you do, wear old clothes and enjoy