If its a YDK motor that runs nice and doesn't spark, stick it on eBay for something like £20-£25 delivered (collect+ not Post Office will save you money) on a 30 day buy it now listing.
They are like hens teeth now.
If you are local to us, I'll happily tip a tenner up for one or swap you something else you need, etc.
We can't get enough of those DC01 YDK's in good condition.