minimun order value - status order

Hi i have two questions about this beaoutifoul project:

there a way to set a minimal order value? the order to proceed must have at least 500€ of value...
can i delete the order status i do not need from the db? they are only descriptive or they are involved in something?

thank you

1. I think it is planned for the next version
2. If it ain't broke, don't fix it But yea you can delete them from the admin->config->localisation->Order Statuses

thank you a lot