In the cowboy action world, the SASS shooter/gunsmith, alias Jim Bowie, does great work on Marlins.
I traded for a Marlin 38 Spec. Cowboy Compitition 1894 that had been worked over by this guy. To me, it's the slickest CAS Marlin I ever used. I sent it off for checkering.
Here's the link
http://cowboysandindianstore.com/DF