My old friend Dsi from windows mobile days has created an awesome android kitchen. Version .85 now includes support for the first Non-HTC device which is the Ally. I used this kitchen to build the test rom to test the custom recovery with. I submitted the patches needed to build for the Ally and Dsi included them the next day in a new release. Please throw him a donation for his awesome kitchen that makes building a custom rom so easy. Link to his kitchen thread is here Here is a completely 100% stock V08 rom I made to use as a base to get started. Download V08 Stock Of course you have to use recovery-RA_GNM.1.13.img to be able to flash a custom rom.