+1 on the Wolfmans. I've got the Beta Plus - just rode some 4,600 ks (2,800 mi) from Tassie to the Sunshine Coast & back to Sydney on the V7S.
Plenty of room for the tools, spare parts, kitchen & food as well as the the bulky clothes & extra gloves (the mini beta would perhaps have been better for me as all the camping gear & most of the clothes are in the Ortlieb). There was damp in one of the side pockets, and water in the other after riding 6 hours in rain. Dry bag should help with that. No evidence of damp in the main body. It fits on the seat well (both the cafe seat & the dual) & easy to mount and de-mount. The contents are easily accessible on the road. (Wolfman's Boulder Beta has waterproof bag liners, but no pockets and a substantial price premium). It's a very easy way to up & running on the road without fuss or expense. Recommended.

Mal