First I have to wire wheel floors to see how far rust goes.......( really does not look to bad.... ) Leave a one inch border around the “holeâ€......... rivet ( stainless steel rivets ) new pan to that border...... should I make four pans or replace each side ( left and right ) tunnel looks ok..... Also would have to remove and reinstall the seat pans.... Then seam seal all the new metal and paint whole floor.... New metal..... complete pan or left and right halves... Thank you all Any more tips or details to look for.....??