Build a OPENWRT firmware and Install Package for Router (Hotspot)

I want to use OpenWRT to build a hotspot router with billing and bandwidth management facilities and user access . I need an customized image built so that I can have the customized software built . will also need help in choosing a suitable compatible router . I need someone that is really experienced and knows what he is doing . I want a firmware that is loaded onto a WiFi router turning the network into a managed public WiFi Hot Spot to provide guest wi-fi or customer internet access. It will presen a guest with a business branded "landing page" before allowing general access to the internet. Depending upon the chosen set-up, users must either enter a unique code, or a username and password time-based accounting. bandwidth setup The person must help me to install the firmware remotely on the compatible router I need the kind of software available on [login to view URL]