Dan electro are known to be pretty crab though the fact that most of there models have plastic enclosures says it all really.

The grundge also says it all in the title, more metal sounding.

For playing Davids part you need to stick to blues and pedal blending.

Basic signal path would be.

Powerboost > Overdrives / Distortions / Fuzz > Modulation pedals like flanger, univibe, phaser >> Delay

Id say for single stomp boxes to try and find a good fuzz / overdrive like the Rat or the Sovtek russian big muff.

All in personal choice you know what sound your ears want to achieve.
The more money the bertter quality in pedal the less the more tone sucking and non bypass volume drop your going to get.