Supermoto Rim Hub Conversion?

[solidsnake2431]

I just got what I thought would fit the CRF 250L supermoto rim set for my Templar. Turns out the inside diameter for the bearings is about half the size of the Tenplar that has the more standard size axle bolt diameter. My question is if I buy Tenplar hubs can I switch them out so I can use thease rims? Could I use the spokes that came on here or would I need different length spokes...?

If I can't make them work with just changing out the hubs I might return them and then just get supermoto tires for the stock rims and try and squeeze them onto the skinner rims.