Auto-scaling web apps cluster w/ RightScale and GCE

We need the following infrastructure architected and implemented, using RightScale and Google Compute Engine: - A static load balancing tier. o) Multiple domains and multiple applications/sites on the one cluster. o) Supported through SNI, SAN, or another solution, whichever suits best. o) The system should have an input for our SSL cert(s) and place them correctly on the servers. - Every separate application or site has it's own SVN repository from which it needs to update it's source files. - An auto provisioned dynamically scalable application tier. o) Must have: PHP (5.4+ preferably), .htaccess rewrite capabilities (e.g. Apache). o) Preferably: Applications must be able to connect to a database without telling apart reads from writes, i.e. there must be a single connection point for PHP to interface with. - A static database tier. o) Must have data synching with reasonable synch time (e.g.