@Siavash: True that! That’s how Ingot stared too. Buy a mobile inexpensive scope. You can move it around and you won’t break bank. You don need image acquisition at his poin. Use it for a couple of years t make some money and then you can buy something more substantial. Lots of brands around. I’ve used Global but even less expensive scopes are around today. The key is the arm and the service!
Good luck!