Source for interior doors

I am helping a friend with a remodel job that includes a complete kitchen remodel along with replacement of all of the baseboard, door trim and doors in the unit. It seems that the cost of doors has gone up considerably since the bid was submitted. Does anyone know of a good source for clear pine interior and bifold doors?
Al Reid

How will I know when I get there...
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.