howdy just about complete on the rotissiere on my very first car build 69 bird conv--need to do complete floor rear to fire wall , should i buy this in one piece , or better to do 2 piece---what is your guess in hours to do this , also must do rear frame rails, also whats the opion on where to buy npd or fire bird central , these will be shipped to arizona and i will pick them up and bring them to puerto vallarta,.....crasy hey ...... adios and thanks in advance for all opions ron