I only have 1 dish that is on a polar mount an Intelsat 9 @ 58 is push it, but can get it as long as not to windy here in South Fl., because that is 1 heavy solid dish, an have flop it before an it is a pain to recover, about 450lbs.
but you want Intelsat-805 which is only a few degrees over, I would tune in Intelsat-9 1st, (their is also some S2 stuff their) an check you're dish out side to see that it doesn't want to flop or getting close to, an if you are ok their give it a shot, but I would have some 1 by the dish just in case, so you don't bend the actuator tube. also you may need to move you're upper limit switch in the actuator, an if you get Intelsat-805, reset the switch so you don't ever over drive past it an flop you're dish.
or if you want to be sure not to hurt any thing you can always remove the actuator an re-bolt it on the other mount location for the east.