You can run a standard 2T singlecam fuel pump. Make sure you use the insulator spacer between the pump and the block, 5mm thick, maybe thats what you forgot. Any pump from a 2T or 3T-C should work. Originaly, the 2T-G fuel pump did have a different part number to the 2T pump. I think the dimensions are the same, the difference must have been in the spring stiffness.
I have a spare 2T/2T-G pump I can sell you, and I also have a newish electric pump that will also work great.