Hemitronix vs Megasquirt $

Fuel pump, filter/regulator etc is included with the Hemitronix kit. It is complete, but obviously requires some engine disassembly. This is not a huge deal with the customer's car cause the engine isn't assembled yet. Being as BOTH these cars will be driven, I guess I keep thinking that a Delphi based system should be easier to find someone to troubleshoot it if he's out of town? And with either of these systems, will they store OBD fault codes?