Impossible for me to answer. You can get the soldering equipment and practice on scrap wire and such. I know you don't know me from Adam, but if you bought the stuff and sent it all to me, I'd be happy to do it for you and send it back. It doesn't take very long to do.
If you're going to have audio as a hobby you really need to learn to solder. You'll do it more than you think. There's plenty of you tube videos to watch to help you learn.
This is a good community, with 24k posts I know you're not trying to steal crossovers from someone looking for help. I may look in to trying to do this myself, but I am very interesting in getting the mod done. Thank you for all of your help.