Auto - 5speed swap

Anyone want to suggest a shop near Denver to do swap out an auto to a 5-speed in my s13 convertible?

I was going to have importsport on e. Iliff do it for me, but their only Nissan guy quit, so now all they work on is Hondas :banghead: (like every other shop around):banghead:

do it yourself. http://www.nissaninfiniticlub.net/artman/publish/article_188.shtml
article is for s14. s13 will be simliar