Actually, replacing the seal on the ram is not that hard. SeaStar makes a kit that includes the seal already mounted in an endcap, along with a special wrench to remove/install the endcap.
I've got a small leak, and when it gets to the point I can't stand it anymore, I'll get the kit from a local marina (SeaStar doesn't sell direct to the public). When I do that job, I'll take pics and upload them here.