Do not hide behind an e-Mail address with no physical address in sight and then ask a visitor to part with a great deal of money. The first thing they smell is a rat with this kind of marketing.
Not exactly, what you want!
You must have a physical address to build confidence in your prospects. Now, if you are concerned about giving your home business address out, rent a “disguised” mail box and give that out instead. A disguised mail box does not appear to be a mail box. The operator has an address that makes it seem like a “normal” office or building address.