We use the Superfos vapor lock 502 for everything now. I buy a case every year or so but we wash them and reuse. Cost is pretty low at higher qty and as high as a buck per or so by the 100pcs, for both container and lid.
Are those delitainers you linked to really airtight and durable to drill mix in? I would expect a result like mimosa had but if they were higher grade I could see it working out.