TX Tool Crafters (no affiliation) used to sell replacement S30V plain-edge blades for the LM Wave (2nd Gen and Wave+) that also work well in the LM Signal. I hope they start selling them again.

I modded a 2nd Gen Wave to be a Rave (Rebar pliers head in a Wave) but the Wave+ is a better build than mine.

CountyComm (no affiliation) sells a small nylon pouch that fits the LM Bit Kit and a Bit Extender easily. Makes it easy to stick it all in a pocket.

Skinth (no affiliation) makes a wide variety of cool belt holsters for multitools and other things.

There's a huge community of multitool modders, both at Multitool.org (no affiliation) and EDCForums (where I am also known as "chaosmagnet").