Your going to try to compete against Siacoin and Storj for s3 storage API price competition! (and all the other reliable ones such as Amazon and even Alibaba OSS S3 compat API) at what price per terrabyte?

"Sia splits, encrypts and distributes your file across a network of computers that offer to provide their unused pace."
https://f-a.nz/gist/sia-encrypts-and-stores-files-for-a-fraction-of-the-cost-of-AWS-S3/

At 0.28 US cents per Terrabyte per month https://siastats.info/storage_pricing

Please get a bit more creative.

There are valid solutions to your problem but I guess you don't know them