Streaming Replication Resource Management (PGSQL) on FreeBSD 8.x

Streaming Replication Resource Management (PGSQL) on FreeBSD 8.x

I am attempting to set up PGSQL-HA streaming replication on freeBSD 8.2
(willing to upgrade to 8.4 if need be).
The set up is simple: 2 nodes, one active one standby. I have successfully
set up streaming replication between the two nodes, but I am now trying to
set up a resource agent/manager to deal with automatic failover and
STONITH.
I have attempted to use Heartbeat/Corosync/Pacemaker for this, but am
running into difficulty building them from source (Pacemaker, in
particular).
Is there an easier way than using Pacemaker for a simple 2 node set up? I
have little experience with this and especially with freeBSD.
Thanks!
*Note: FreeBSD 8.x is required, the servers are running other services
that would make it too difficult to upgrade or change the OS