Hey Le Loup,
The era you have cited is a bit broad, you may want to narrow it down a bit as that time in History was a bit of a transitional one, and things were changing fairly quickly (relatively speaking).
Also if you could be a little more specific as to the locale of your desired impression it could make it easier to help you. I have been focussing on a 1700s to 1720s impression (Carribean and Coastal America) over the last year (also paying close attention to 1660 to 1680 for another impression I wish to do), so take my responses with that in mind.
I don't have sources to cite for most of this, but I might be able to give you a nudge in the correct direction with these responses...
Market Wallets - I've seen them debated by re-enactors of the above time frames, but I've not seen any hard evidence one way or the other...
Snapsack - I've seen references to them going back to the English Civil War (1640s to 1650s) as well as some references to them during the buccaneer era (1660s to 1680s), and have heard other speak with confidence about them for later periods, so I think they would be good for your time frame. However, I have seen some strong debate regading their construction at varying times, so they may have been constructed from different materials at differing times (leather in some eras, canvas or other fabric during other times).
http://www.southernrangers.org/snapsack.htm The link here is to a good set of instructions on how to make a canvas snapsack. Although this particular interpretation has one end sealed up, and most interpretations I have seen have both ends tied.... Although anyone who knows how to sew could alter the pattern on that page to tie shut on both ends, and a decent leather worker could probably work out how to make one from leather from those instructions as well.
Water Canteens - There are plenty of references to Calabash or gourds being used to carry water throughout the 17th century, so as long as your re-enactment "area" would have Calabash or some similar gourd available, you would be safe with that... Although I am certain that a bit of research would reveal other options ( i like the idea of using a calabash so I haven't looked into it).
Portable Kettles - Some form must have existed for the military of the age while on campaign, but I have not looked into that yet, so I can be of no help there.
Wasit Belt Pouches - with the exception of what looks more like a shot pouch or something like that, I don't think waist pouches would be viable for the period. Pockets were staring to become common on clothing, so anything small would likely just be put into a pocket, and anything too big to fit comfortably in a pocket would liekly have gotten tossed in a snapsack or haversack or similar thing.
Hope this has helped....