This repair will take extensive labor hours. We will have recover refrigerant from system remove all paneling, then cut and remove Evaporator coil. Pin point exact leak and weld shut. If can not repair leak we will re tube up to two rows of coil. Once repaired will pressurize to verify leak is repaired. Then reinstall weld and vacuum system. Charge system with 12 lbs of R-410A and leave in service.