Unless you are prepared to spend some serious cash on your wan links , I think its safe to say you can rule out FT, which requires a GB link between sites.
SRM requires a whole lot more than just an additional VC licence - have you got a replicated SAN in place ?
How many machines are you looking to protect ? you may want to look at a replication based solution like veeam ( assuming you already have a virtual infrastructure at your second site ? ) you could even tackle the issue at the per machine level with somethign like doubletake or neverfail if availability is your key metric.
Once you have a clear idea of your required RPO and RTO and the budget to maintain those , you'll find its a lot easier.