You may have pigeonholed yourself with the discussion already by asking the question, "do you have recommendations for heavy gear that can replace our heavier gear?"
You came to a radical place asking for a marginal solution.
How about a radical change in how you are looking at things by eliminating the need for a "tent" and instead focusing on the need for a "shelter"?
The following paragraph is a single sentence that should be spoken aloud with vigor and increasing volume, with a crescendo at the end.
Ultralight shelters (tarps, floorless full perimeter tarps, single wall ultralight tents, etc.) have been used successfully now by many people for long enough in conditions that are foul enough that learning about some of these more radical options, and the skills required to keep your clients safe, comfortable, and happy, that you have an opportunity now to RADICALLY transform your business, and your client experience, and differentiate yourself from the throes of adventure travel companies that are doing the same old thing in the same old way for a client market that frankly wants to find increasing enjoyment from the outdoors rather than willful suffering!
Ask a question, e.g., about how to go tarp camping comfortably in foul weather and the forum members here will rescue your company and transform your business trajectory forever in the best possible way, because, quite simply, your clients will have a lot more fun and a lot more energy to enjoy the incredible West Coast Trail which is one my personal favorite hikes in the world.
Yeah, so ... sorry about this ... I have a little bit of passion for ultralight backpacking, I reckon.