35 oz of "stuff" may not be enough depending on the desired consistency and how much liquid is in there to start with. I've had sauces cook down by as much as 40%. Those were sauces where I used some juices in the recipes. For recipes that are heavy on peppers and other solids,35 oz sounds like a good number to start with. If you are dead-set that you must fill 6 bottles of each flavor, (maybe for Christmas gift packs or something???) then perhaps shoot for 40 oz and if there's a little leftover for the fridge...BONUS!
Measure out 2 quarts, or use a 2 quart measuring cup if you have it. Fill the container up with as much solids as you can get in there, or as much as you think you want in the sauce (peppers, onions, fruits, whatever) and then measure and pour the liquids over the solids up to your desired starting measurement. That will give you a pretty accurate reading of how much you have to work with.
Good Luck, looking forward to pics!