Hello Vepr people

I am new to Veprs ( mine should be here within a couple weeks) and very new to this forum. So, I have a question, while I have been reading and learning and discovering the many wonderful things available for the greatest weapon of all time, I have noticed that magazines, some more than others, are quite expensive. I also noticed that the magazines that are 10 and 12 round are quite lengthy, which is understandable due to the physical size of the round itself. I have seen several of the large 25/30 round drum magazines, and they too are quite large and bulky. So, here's the million dollar question... Has anyone ever seen an aluminum drum mag, for 10 or 12 rounds? ( I thought I saw one somewhere, but unable to find it by searching it) Question #2, has anyone considered building such a magazine, yes it would be way expensive, but possibly worth it for size and mobility?
I would like some opinions, any available data, possible negatives etc...
Thanks for having me...
