Your interest rates are not good enough for me, sorry. If you will consider higher rates, and a payment plan beginning 2 weeks after the start of the loan, pm me. Also, let me know what currency your customers will be paying in, as well as whether your pricing will be in BTC or fiat. These details will help me determine whether to calculate exchange rate risks into my risk premium. If you have GPG and are willing to share more about your business model, I will likely be able to give you a better rate. Let me know and I'll give you a key you can encrypt a message to.
I feel that 15% is pretty exceptional for the duration of this loan. If you would be able to loan all of it for perhaps a bit longer, like 2 months, I would be interested in paying a higher interest rate. I've always fixed to BTC but if you want to fix the loan to USD, that's fine too. I'll shoot you a pm though.