Programatically Set Margins In Report Viewer Control?

In onw of our application, we have some reports that need very specific margins that are dependant of the printer the user have. It is used to print into preformated paper with blanks to fill and depending of the printer, the printing is off by some margins. To make things worse, we don't actually control what printer is used because it is not an internal application.

The only solution I could think of is to let the user configure the margins somehow. I though I could just dinamycally change the report margins like I did with datasources and actual report ( I have one control that is used to display every reports from my application and it works alright), but I can't seem to find that damn property to do so. There is a margin property on the report viewer but it's for the form display so it doesn't cut it.What I was thinking to do is to define the margins before the user loads the report, i.e. when he clicks on the report button, I load the report, set the margins (or vice-versa is necessary) and then display it.

Before someone mention it, I know the user can, once the report is loaded, change the page setup to fit his needs, but this has two drawbakcs. First one is that it is not saved each time and I need it to be 'saveable' and by users. The second one is that Report viewer seems to have some bugs when the regional setting aren't set to what it's expecting and we can't force the users to changes their setting to accomodate one application.