WHat to use on pepakura

[ThePinkPanther]

So I've put together the Pepakura map for a Halo 4 helmet. Now i need to know what resin/other material to paint over it and layer up with. A friend of mine has suggested Polyester Laminating Resin but i want some other peoples opinions. The helmet will be worn and once i get around to it, it will be part of a full Halo Spartan suit. This means that the ideas need to be cost effective (ie: to do the helmet i would like to spend no more than $40 Aus). Any help would be much appreciated, thank you all.

 

[Balmung]

poliester resin outside first
fiberglass or rigid poliurethane resin inside(some people use rondo:resin+bondo but I dont like it)

 

[ThePinkPanther]

Thanks man thats awesome