I have an enforcer and have previously owned a jag and Airflex turbo and prowler.
The enforcer IS a great machine... The new 5.7 motors are very powerful and offer great performance.
Forget van mounting... Take but seconds to slide off the van and wheeled to the point of cleaning... Use it as a porty and you will be glad you chose it...
As for 6.6 motors... I know for a fact that certain manufacturers of macines are now using electro 5.7 and not 6.6