260cm probe is fine. I prefer mine with the measurement markings on my for various reasons. The ones that you pull and are self locking are nice and quicker than the screw type which also work fine but are marginally more fidely..well not really but maybe just a touch of gain in the efficiency factor.
For shovel I have the deploy 3, which is light and small and bomber thus far. It's all together ready to go and fits nicely inside my BD pack as 1 piece. Personally I don't like the long shaft shovels but some people do, personal preference really. Argument can be made that bigger shovels move more snow but smaller = faster so 6 of 1 half dozen of the other. Don't bother getting the Voile one with the saw built in to the handle it's a piece of shit and the release button will fail eventually, not to mention it will ice up and it's heavy. It now sits in the car as a drove in to the snowbank shovel.
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If we ever skied together and you showed up with a plastic shovel blade model, you would be asked to trade for the day that way I wouldn't have to worry about failure if you had to dig ME out

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