I've had both Lightech and Gilles on previous bikes and would only buy Lightech again..........saying that, I haven't bothered with any for the Gen 3 and can't say it's been an issue.
Best pads I've tried ...... DR Bikes are the cheapest I've seen for these - even for the 4 pad Gen 3 calipers which are normally the most expensive, they are "only" ?320.
Re: K-Tech Suspension
They made a small batch for Phil Crowe but not sure if they would make them for Joe Public......... ?2.5k ish for the TRD is a bit much unless you are either loaded or race at a high level. I think Bitubo do a shock for around the same price as a DDS Pro.