> I guess quite a few of us may be in the same position and wondered what
> the various solutions were.


You can self-certify. (at least in the US)   if your product is later found
to be non-compliant, you could be in big trouble.

What I do, is to use a wideband receiver (Icom R-8500) to do my own
prescans, assuring that I will not need more than the minimum time at the
lab to certify.  While I can't make absolute measurements, I can play "kill
the biggest spike" till there's nothing significant left.

Good board layout, and an understanding of how EMI gets created go a LONG
way twoard a nearly silent system.