I gutted an old stock relay, removed the circuit board but kept the pins. I then wired up 2 40AMP heavy duty relay's to that gutted relay, I now have a super duty 40AMP relay solution for both the FP and the DME power. Added bonus is these are 40AMP standard style relays, super cheap upgrade.
I used relays like these:
10 PACK HARNESS + RELAY BOSCH STYLE 5-PIN SPDT 30/40 AMP 12V DC + 2 YR WARRANTY
If I get some time I'll take a picture.