JustMyLuck,
If you haven't bought your Whelen kit yet I would highly recommend it. I just installed Whelens 90 Watt Hide-A-Way system in my '03 Celi this weekend. They are super bright.
As far as strobe placement, Whelen suggests installing them in the main light housing but you don't necessarily have to...if you have any location in the light assembly with 1" of unused reflector space you should be good...if you'd want PM me with your email addy and I'll shoot you some pics...I would suggest looking at
www.lshlights.net when ordering. They're the cheapest I've found.