You can upgrade the opamp and regulator in the Mcintosh MA6900 phono stage with those Burson kits... then you will have some change left.
Here's a blog post on another Mcintosh upgrade using the Bursons.
http://bursonaudioblog.blogspot.com/2010/02/mcintosh-c15-upgrade-with-burson-hd.html
Here's a blog post on another Mcintosh upgrade using the Bursons.
http://bursonaudioblog.blogspot.com/2010/02/mcintosh-c15-upgrade-with-burson-hd.html