Painter American Bulldogs?

I've got this 3 yr old good n heavy Margentina gyp....I'd really like to find a Painter/Margentina stud but don't really know of any from what I can remember, if I found one it might make a good breeding-but as far as I have learned there's plenty good suds of different types of great lines that will get the job done, but preserving the pedigree and keeping the gene pool going is something I'd like to be a part of.....so any detail on a stud that would keep a tight pedigree of Painter/Margentina- I'd like to know about em

http://www.pedigreedatabase.com/american_bulldog/dog.html?id=1264930-american-legendz-country-strong-b