Alien Death Squad....
using what I have, How bad will I get my ass kicked 
Nexu
I picked up an extra Trandoshan Hunter on ebay cheap
Price on Their Heads
Do you have Twin Shadows or Return to Hoth? Personally I think IG-88 is the worst unit with that cost. If this is from the core I would swap IG-88(12) and Nexu(4) with skirmish mercenary upgrade Temporary alliance (cost 1) and add Luke(10) and Gideon(3). But it leaves us with 38 points..(Of course there are upgrades for cost 1 as well to fill the cap) Or you could switch Han instead of Luke and have 40. However Luke and Gideon would be much more powerful, as Mercenaries lack leaders and support. But if you have the expansions, then there are more viability with Mercenaries. To be honest a huy with HK droids won our local tournament, which was the first time for mercenaries.
Edited by Imluswe are limited to wave one only
My suggestion then:
10 Elite Trandos
7 Trandos
7 Trandos
10 Luke
3 Gideon
1 Temp Alliance
1 Devious Scheme
It's just 39 pts though