Maybe try a better way to organize / manage your parts orders.
Use Excel (or other spreadsheet) to build up an order...
- Use the following fields/columns
--- Machine
--- Mfr (manufacturer of part)
--- Part
--- Part No (mfr part #)
--- Qty
------ Use 2 columns per vendor that you use - column heading is the Vendor Name
-------- put the price in the first column
-------- use the second column for *in stock*
Something like this should get you started.
I use 3 spreadsheets for different types of parts. I have specialized ones (different fields) for rubber and bulbs.
Even better is to take the above and create a small database using something like MS Access, but that's more complicated.