hi everybody, i'm looking to buy a 1949 buick roadmaster, i've been looking for info over the net for that car but i cannot find what i'm looking for, i want to be sure of the model, the year & maybe the value of the car

car is: roadmaster 1949
vin: 1406-69
body style: 47-4769
model 71

what do model & body style means, car is in perfect shape, like new, original everywhere. how much it worth??
thanks