After having a quick measure i reckon a std grale cooler would fit with very slight mods giving a neater and more factory look.

heres a pace rep of the std grale cooler, the std ones are better, come in black and usually go for £50ish 2nd hand.

imho alot better shape for the space available and the outlets are nearly cock on for std rst hoses the only drawback is the cooler has the same size outlets as the cossie one.



the piccy is upside down for some reason