It is better to manufacture an unpatented gizzmo than to let lack of a patent halt you in your tracks. For the broke amoung you, look to family and friends for needed financing. Banks are reluctant to loan unless they see a sure return of their money. Sacrifice will be neccessary. Those close and dependant upon you may suffer along with you.
Misery loves company.
You will not be able to convince any one with just an idea. You must show your product in a final form before you can get orders. Be aware of the manufacturing processes involved, and their related costs. Do not try to produce a dozen differing versions of your product at once, unless this is THE major advantage you have over your competition. I pause here to let you reply with questions.