I stopped using the Wild Things Epic pullover also because I perspired in it considerably more than in GTX. So, you might be disappointed in that respect also. I now carry an extremely lightweight and breathable DWR nylon Montane as a windshirt just to keep the chill off, and a Patagonia Specter pullover for serious rain. Should a long eVent jacket below the 8.5 oz. weight of the XL Specter become available, I will switch to that if the price is affordable for me.
Despite my warnings, another poster did buy some Malibu from me to make a rain suit. Maybe she will chime in on how it has worked out. As I told her, the Malibu is only moderately breathable, and not really waterproof in severe rains. Because it passes water vapor at lower humidity, it could be a great single wall tent material if it had more water resistance. A lot of Black Diamond Malibu tent users who carefully seam sealed and never got into long heavy rains have reported being quite satisfied with the BD Malibu tents. For some other users, not so much. It is an attractive, quiet but not stretchy fabric, very easy to work with, and that is why I tested it for several months and tried several spray treatments in the hope it might work out.
The problem for a jacket is that as the humidity inside the jacket increases with exertion, the vapor transmission of Epic does not increase much, unlike GTX and many other WPBs. This is discussed and illustrated in a graph in Alan Dixon's article that I mentioned at
Since it sounds like you are not looking for a tempest proof material, if you used Schoeller Dryskin, you would have much more breathability, and enough water resistance for short term exposure to rain. Rockywoods.com has some Schoeller fabric in a light tea green that might interest you. Don't know if it is equivalent to Dryskin, though.
Also omitted to mention the very breathable Propore fabrics, as used in inexpensive but fragile Rainshield and Driducks.com jackets. I use these around town with no problem, but not in the woods. Sometimes I get crazy ideas like making micro-holes in light cuben and bonding it somehow to Propore; but fortunately, the fantasies quickly fade.
Science marches on, and there are new WPB jackets with new materials regularly coming on the market; unfortunately, though, it is quite a while if ever before the new materials become available as yardgoods, and the marketers' claims are so extravagant, one has to be very cautious if on a limited budget.
Good luck with your search. Should you be satisfied with the results, am sure many of us would be interested.