Lightroom :: Can't Control Borders Properly When Printing

I use large sheets of paper in my printer and typically want to print several photos on one sheet. In order to use the entire 19" length of the paper I select "borderless" printing in the printer options of my Epson Stylus Photo R3000 printer.  For example, I create a template with five 5x7 photos and two 4x6 photos on one 13x19 sheet of paper. I then want each cell to have a border of 7 pts. I set this in the appropriate print option in Lightroom. I select each photo and drop it onto the appropriate cell.  When I print this selection, Lightroom fails to preserve the 7pt borders of the various cells that lie on the outside edges of the paper.  It preserves the 7 pt borders everywhere else.  This occurs for any possible expansion setting I choose under the 'borderless' selection.
 
Conversely, if I do not select 'borderless' printing I get double width borders around the outside edges of the paper, single width borders on the interior edges, and therefor I cannot fit the last two 4x6 prints on the paper.
 
Is this a bug or is there a combination of settings which will give me what I want.