Cal, what kind of sausage are you making?
I'm not sure if the seasoning you are referring to has the salt already added to it which would make for a lot more bulk than the spices alone would have but we've used vacuum sealed canning jars for years to store spices, cures and other dry food products. Jars are readily available most of the year in sizes from 4 ounces (120ml) up to 2-quarts (1900ml). And while the lids of pressure canned foods are definitely NOT re-sealable the lids used for dry storage can be resealed many times if you're careful in removing them.
We also do a lot of fairly long distance backpacking, take extended canoe based trips and so forth. While we much prefer to eat "real food" we unavoidably have to save space and weight at times so we keep bulk freeze dried and dehydrated foods, powered non-fat and whole milk, powdered buttermilk, powdered heavy cream, premixed homemade powdered soup/sauce bases etc in canning jars, too. A lot of those powdery things will clump up into a brick or go stale if left in the factory container or something like a Rubbermaid container. Foods like the freeze dried stuff that the maker advises to use in a few weeks after opening the original container will revert to their 10-25 year shelf life (product dependent....) if stored vacuum sealed.
To remove the lid without ruining it we place the spine edge of a table knife in the groove between the very beginning of the thread for the lid and the lid where the groove is the tightest and gently pry the lid up until it comes free. You can generally reseal the jar a dozen or more times before the lid rubber gets so compressed or dry that you need a new lid. Be sure to have the jar rim and the lid's sealing surface clean when attempting to seal the jar.
Jars and lids can be hard to find in the run up to canning season in late spring and during the summer so plan ahead.
On a safety note, a vacuum sealed jar with liquid or wet contents is pretty rugged whereas one with powdery contents can shatter and implode if handled roughly and knocked against something hard so don't go tossing them around. Handle them with a little dose of common sense.
In short, a jar sealing attachment set for your vacuum sealer can be a game changer when it comes to long term storage of dry spices, dehydrated or freeze dried foods etc.
Hopefully some of this rambling helps......
Best regards to all,
Lance