Transformer to import to Guinea

Please kindly send us your best price and delivery for the following transformer:

Quantity : 1
Rated power: 4250 kVA
Primary rated voltage: 20,000 V
Secondary rated voltage: 410 V
Primary rated current: 122.69 A
Secondary rated current: 5984.72 A
Frequency: 50 HZ, Three phase
Short-circuit voltage Ucc: 9.06%