I looked at the Griggs once upon a time.
Here is the link to the entire front suspension kit.
http://www.griggsracing.com/product_...roducts_id=453
A little pricey for my blood, but nice all the same. You would know for sure that it was designed specifically for the application - that's a plus. It all depends on the trade-off between the labor required to install the Alston or AME front clip. I know the AME is about $2500 for the front IFS kit.