Building on the earlier suggestion, you might want to consider the 3D MAXpider Kagu Floor Mat for Cybertruck. They have a unique raised lip that's great for containing melted snow from boots. For the screen, the Abstract Ocean Matte Screen Protector for Cybertruck is a solid bet to avoid that glare. Just be careful when loading the bed—the stainless steel is tough but those side walls can still get scuffed by loose gear.

TL;DR: Secure cheap bins with a net and DIY the vault seals. I've been really satisfied using the Gladiator Cargo Gear Small Internal Cargo Net to keep my gear from sliding. It's a methodical way to manage the bed without spending $300 on metal dividers. For the vault moisture, check out the Cybertruck Owners Club forums for DIY weather stripping guides. It's a solid way to keep your gear dry for under $50, which works well for a budget.

Congrats on the delivery. Since you are hitting the ski pass, moisture management is your biggest technical hurdle. The stainless bed is slick, so unsecured bins will definitely slide and potentially dent the inner walls during hard regen braking.

• Floor Mats: I recommend the Tesla Cybertruck All-Weather Interior Liners. They use a high-density TPE (thermoplastic elastomer) which is technically superior for snow because it maintains its shape in sub-zero temps better than cheaper rubbers. The walls are also significantly deeper than the 3D Maxpider ones, which helps when you have liters of melted slush on the floor.
• Screen: Most people complain about glare because they buy matte protectors which diffuse light. If you go with the Spigen Tempered Glass Screen Protector Glas.tR EZ Fit for Cybertruck, you get a 9H hardness rating with a high transparency index. It basically feels like the original glass but the oleophobic coating is actually better at repelling oils than the stock screen.
• Bed Storage: The vault is weather-resistant, meaning it handles rain but not high-pressure spray. For your gear, look into the Pelican 1615TRVL Air Check-In Case. It fits the bed dimensions well and is actually waterproof. If you want to save money, skip the dividers and get a basic rubber bed mat to stop things from sliding around.
• Mud Flaps: This is non-negotiable for Seattle winters. The Tesla Cybertruck Mud Flaps help prevent rock chips on the rocker panels. Without them, the tires will sandblast your stainless finish in a matter of months.

Are you hauling heavy tools or just gear? In my experience, loose items can damage the vault sensors.

• avoid thin bins
• watch for pinch points Dont risk it.