The Sytec FPR is fine and you could use an inline Sytec filter (glass bodied so you can see what is going on). I have a similar FPR on my Mini (branded Purolator). It could even be the same, just different branding. I am told the numbers on it are not actual psi values, just a scale. May be sensible to make provision to measure the fuel pressure. On the Mini the FPR and filter are on the front bulkhead and I have a solid state Facet pump in the boot As an alternative there are Filter King FPRs that have provision for a fuel pressure gauge. So all 3 things in one unit