Your openion is required on installation of CNG in Toyota SURF.
It has 3RZ-FE engine which is a 2.7 L (2693 cc) version built in Japan. Bore is 95 mm and stroke is 95 mm. Output is 150 hp (112 kW) at 4800 RPM with 177 ft·lbf (240 N·m) of torque at 4000 RPM.
I have found following versions of Landirenzo CNG Kit.
TN 1/B SIC (standard): up to 100 kW
TN 1 SIC (oversize): from 100 kW to 146 kW
TN 2 C SIC (super oversize): from 146 kW to 169 kW
TN 2 C/S: from 169 kW to 193 kW
TN 3 SIC: over 193 kW
TN 1/B SIC Turbo: for turbo-charger engines up to 154 kW
I think the second one could be used with the SURF.