Here is an ad from an internet classified:

2007 Beast (XXXXXXXXX motor) for sale.Leading XXXX Points, second in 2010. All the best stuff, tons of spares.
Motor was rebuilt in March by XXXXXXXXX, eight races on motor so far. Motor was updated with all the latest and greatest stuff ( $9200 )worth.

So.... $9200 to rebuild the $22,000 engine..... This is totally insane.