build an openwrt image with image builder

I was able to install openwrt on my router but i need some customization that should be faster with a custom image Router is [login to view URL] Model A5-V11 Firmware Version MultiWeb_318_2015-03-14 ( OpenWRT r44510 ) / LuCI (git-15.051.48491-4137afe) Kernel Version 3.18.7 current flash from [login to view URL] I would like to run [login to view URL] and a pptp client Would like someone to build me an image to flash using image builder [login to view URL] If you need to eliminate any package - I dont need any wifi encryption, you can remove all wifi encryption. Or ddwrt