You would replace the Eliminator pump with the Squash twin in-tank pumps. You should already have the FPCM disabled with your current system. ou can keep the existing AN lines and regulator.
You can sell you pump to make some $$$ back.
I Andy's stuff on a couple of trucks and they have been great. I just received another one from him yesterday that I am putting on the Silverado cause I was running out of fuel with the spray.
2005 Dodge Ram 2500 RCSB Thunder Road Hemi Sport w/STS Turbo
2004 Dodge Ram SRT-10 - Silver - Stock
2003 Chevy 1500 RCSB Stepside 400SS - 408 in now awaiting Turbo