Spreadsheets can help you manage a project budget, however if you cannot (at least mentally) flow-chart the process, managing the whole project can be very difficult. With Microsoft Project, you need to get each project step in it's correct order and establish milestones. When you rebuild old bikes, it is possible to do things in the incorrect order and create problems you should not have. E.g like cutting valve seats to fit bigger valves before you do a port job, then accidentally touching the seat with rotary burr. - Or repairing or modifying a frame before you powder-coat it, instead of trying to do it afterwards.