Isn't a Dex barbarian giving up a lot of the benefits of Rage or is it Reckless Attack, that only works on Str attacks?
The Barbarian in my group is Str based and has 14 Dex which, with stealth trained should be fine to play with the rogues. They go a bit ahead, then signal you up when needed. Nobody with Dex base and double proficiency in a stealth wants a non-rogue following them around too closely anyway. Don't underestimate the importance of having somebody strong in a party. One of my current groups has a cleric with 16 str and everybody else has 8. The amount of times his Str is needed is ridiculous.
I may have missed it, but has the cleric chosen his domain yet? If you did go with a decently, but not very, sneaky character, then the group would be well served with a Trickery cleric. Normally they are pretty bad, but in a group like this it could work well.
The Barbarian in my group is Str based and has 14 Dex which, with stealth trained should be fine to play with the rogues. They go a bit ahead, then signal you up when needed. Nobody with Dex base and double proficiency in a stealth wants a non-rogue following them around too closely anyway. Don't underestimate the importance of having somebody strong in a party. One of my current groups has a cleric with 16 str and everybody else has 8. The amount of times his Str is needed is ridiculous.
I may have missed it, but has the cleric chosen his domain yet? If you did go with a decently, but not very, sneaky character, then the group would be well served with a Trickery cleric. Normally they are pretty bad, but in a group like this it could work well.