You start with a search for a suitable shopping cart which has to be one with a chrome finish. I found mine close to the loading dock area of a local grocery store and there it was next to a trash compactor. I went in the store and asked the manager if I could purchase it and was told I could have it for free. The generosity stemmed from the fact that current shopping carts have a powder coat finish so the old style chrome carts are no longer used. I would suggest staying away from the powder coat carts as the heat generated by burning wood in the basket will destroy the finish. The chrome finish will continue to look good after several burns.
Chrome shopping Cart
27" x 8' steel lath
galvanized steel drip edge flashing
galvanized steel corner bead
3 cookie sheets
1 pr galvanized steel hurricane ties
nuts and bolts