wr250x to wr450f

Hi guys. I have both of these bikes and my question is: can I put the 250 sm wheels on the 450?

I had an 05 WR450F SM and before I bought the warp 9's I looked into fitting the factory WRX wheels on and with research and word of mouth came to the conclusion I wasn't going to get them on there. I was told nothing would line up but the best thing to do would be to try and see with a combination of the two bikes spacers how close you can get it to fit. If it works then just order extra wheel spaces. You have an advantage over me as I did not own the WRX yet so i could not fool around with the idea as much as i would have liked. Dealership said no but what do they know..

I will give it a try. Thank you