Need To Find An Affordable Caterer

We are thinking to do the wedding in the church and possibly do the reception afterwards at home, simple for the closest friends and colleagues. This is a second marriage, a little problem in budgeting , that is why we are thinking if we can find an affordable caterer to help us modify whatever we can do . We live in Michigan and I searched the yellow place , and I found that it is unaffordable. I wish there is one caterer out there that can help us budget our expenses . WE are planning to have 50 guests probably at the lawn at home or if the wind is strong, we have to have another option, this venue and tables, chairs, decor for the buffet setting is what I would like to know, and the food cost.

Thank you for your help .