Whether this can be a successful business venture or not is something that could be answered by knowing how meticulous and pragmatic your planning is. It's not ideas that are bad, but execution. And, execution pillion rides the scooter of planning, strategy, and tactics.

Talking about your piece of information, there're too many points to think through and understand. It ain't just about you offering some 3-4 items on month-on-month basis at some $$ price point. It's also about returning policy, operational cost involved, breakeven analysis, and envisioning the rate of growth.

As an e-commerce venture you don't sell a product but service. And, knowing services cost could get tricky at times. Doesn't matter how good your product/service is, it won't cut through customers as long as the perceived value of those product/service don't outweighs the cost for a customer.

Let me know if there's something that might require a tete-a-tete between us.