The 57 150 class Mikes on the IRCA in Guatemala were quite close to a K-27 in power. Water capacity on these was 3500 gallons and oil was 1500 gallons.
The heavy Consols like the 111 had 3000 gallons water and 1500 gallons oil.
The 3 modern Ten Wheelers , 56, 57, 58 had 3000 gallons of water and 1339.3 gallons of oil.
The 3 small Moguls, 79, 80, 81 had 2500 gallons of water and 1480 gallons of oil.
The pair of ex-Sumpter Valley 2-6-6-2s had 3500 gallons water and 1800 gallons of oil.
Not Colorado, but I put these out for comparison.