2009 Tuning Options Deleted/EGR Less/5.9L Swap?

Recently bought an 2009 2500 with the 6.7L Cummins.

It currently is deleted with a single EFI Live Tune.

I am wanting to go to a tuner that has multiple tunes for different situations.

Like a stock power level, towing, economy, daily and a hot/wild tune.

Due to recent events finding delete tuning has gotten pretty hard (didnt realize it was going to be this dramatic before I bought the truck LOL) so I am possibly considering throwing the DPF back on and possibly finding EGR-less tuning.

Or another wild idea, is it possible to swap a 5.9L into it?

Truck will be stock fuel and turbo with the only plan to upgrade would be with a fleece or tater built turbo but only when this turbo bits the dust.

My other truck is a built 12V so this is all new territory for me.

Thanks!!