Building a car and want to delete the stock fuel tank and add an aftermarket fuel cell. Mainly a street car, but possibly auto-cross. The specs on the car are below. any help is appreciated. Tell me your lessons learned or experiences.

What I'm looking for is info on fuel pumps, cells, and sending units. Is it possible to make the level gauge on the cluster work?

Motor:
B20/P73
T3/T4 turbo
AEM fuel rail
AEM FPR
other goodies

Car:
99 GSR converted to RHD with JDM ITR clip. Inside will consist of a 4-point cage, two seats, harnesses, and a dash so the trunk will be completely empty. While the car is being swapped to RHD, I could possibly cut the trunk out between the uni-body rails and rebuild it with aluminum and weld in a cell.

Let me know thoughts and opinions. Thanks