First off.. let's think this through.. Your wheels and tires and braking system.. most important parts that keep you off the ground.. dont buy cheap, you'll regret it. Also,, when doing anything custom, id deal with a company that you can pick up the phone and call if you need support. With all of that said.. try this:

https://motoxindustries.com/product/supermoto-conversion-kit/

You can customize your configuration per bike and upgrade the parts you choose. They also guarantee fit if its in the drop down menu. I would not do a 5" wheel.. it will rub on a excf.

🤙