You can also try try keycamp and eurocamp they have mobile homes at miami playa and ask what contractor they use to move their mobiles about.... it a shot in the dark but to be honest this is a very specialist job,you did not say how big the mobile is and what sought of access , some can be jacked up and put dolly wheels on and towed out with a 4x4 otherwise you are looking at a 2 chain lift with a hiab on a flat bed rigid lorry or artic trailor.... that aint gona be cheap!