i see a lot of you with 96 and later with pressure reg. in rear converted to 95 style with regulator in front. Is there an easy way to relocate the FMU to the firewall?

As far as physically mounting it to the firewall you will probably need to move or remove something(s) depending on the size of your fpr and where you want it.

You can take out the wiper reservoir and it frees up a ton of room. That is what I did. I did a little write up a year or so ago on taking out the wiper reservoir and still keeping the function of your front wipers.
http://www.geocities.com/dj_child/Res_writeup.html

Hope this helps
Brian