I wouldn't worry about it either.
I've never heard of a Strom ever having anything but 3 bars on the temp gage. I did manage to get it to 2 bars once on the highway at 30F in 6th gear going downhill.
Obviously I live in the North and it doesn't really get HOT here. But my Pat Walsh skid plate doesn't have ANY holes for air and I added the extra radiator guard which is a plate with small holes. It claims to not restrict airflow, but I don't understand how that could be possible. I doubt I'll ever see it get hot.
Don't get me wrong. I actually like the Pat Walsh stuff a lot. I really like the highway bars and the fact it is a complete solution. I'm just pointing out that airflow doesn't seem to be an issue. Go ahead and pick a skidplate that looks rugged enough for what you intend to do to it.
DL650K6, MadStad adj shield, Givi e45 & e36, gpsmap 76CSx, Pat Walsh skid plate & bars, Sargent seat
[URL="http://www.sr.unh.edu/~rea/stromtrooper/2007/Strom_Range.png"]My 2007 Range map[/URL]