My friend built a Blade same as the Blitz but with only one wing. When we built it we just used 5 min epoxy and thin ca with zip kicker too and it did not hurt the foam at all. Below is a list of the setup we used on the blade I think it would work fine on the Blitz, it has way too much power for the Blade so it should haul the Blitz fine

Blade setup:

AXI 2208/34
APC 9x4.7
Phoenix-25 ESC
Apogee 3s 830 mah
Cirrus 5.4 Ultra Micro Servos
GWS 6-Channel Naro Receiver

hope this helps,

Brian