Here's one for you'll. I have a mercury 200xl Serial number 1B515667, and I am in need of an ignition coil kit part number-883778A01. My question is, is there another coil kit I can use if this part is not available, maybe such as a coild kit from a 200EFI?

That number has s/s to 339-883778A02 and Mercnet shows at this time 10 in stock in Alanta and 10 in Fond Du lac. List is $118 USD and Boats.net should be able to assist you.