Diesel Generators

We have a remote site having a variable power demand between 75KVA at night to 1MVA during a hot summer day.
We are considering to install a number of different capacity generators with synchronization to provide the full power while having about 20% of extra redundancy capacity.
So I appreciate to receive your quotation for generators Prime Power size 75KVA, 100KVA, 150KVA, 200KVA, 300KVA, 400KVA and 500KVA so that we can make our final selection.
All needed generators are diesel type 400/