You really only need a rotor if you want to get fancy and try to pick up other stations like Rochester, or Erie. When I have my 9032 pointed at Buffalo I can still pickup the Toronto stations well. If youíre using a 4228 then you've got a much wider pickup pattern then the 9032 and thatís going to be good in your case with not using a rotor. It should work just fine.
I have an amp on the antenna.... makes a huge difference for Buffalo stations... mainly NBC. I have a 2 way splitter inside that feeds my digital OTA box and the other is for analog UHF channels on my TV.
I did install everything myself... maybe I could help you do your own install if you have all the equipment.