I'd leave your EGR in place and gut your DPF, leave the DOC in place.
This is what I would do.
2018 Toyota Tundra Platinum Crewmax
SOLD:2008 LMM Silverado 2500 LTZ ECSB 4X4.
Aftermarket DSP5 calibration by Danville Performance, Blocked and re-routed, Nicktane with Baldwin BF7587, PPE lift pump with Baldwin BF1212 water separator, 285/75/17 Dura Grapplers on H2s, CTS Insight with pyro.HIDs in fogs and high beams.
Proud Member U/A Local 693 Plumbers/Pipefitters.