Hi
If you got $300 or so available just go buy a yaesu 450 rotator.. job done, safe, looks good (Wife and Landlord friendly.) reliable and holds resale value.
Have one here holding up tein 2m tagi¡¯s and 10m yagi.. year old, looks as new and on Dartmoor so very open to high winds and rain ( and sun.)
Job done, forget about, especially if you up high on balcony, last thing one needs is an antenna hanging from cable over someone¡¯s head! $300 ( or so, mine i had buy bottom clamps.) well spent.
Simon g0zen