What equipment should you buy to start a machine shop

For this plan, 150,000 is really not much, but not impossible. In my experience, you can only buy old ones, but I can see that you are a bit unfamiliar with the equipment, and buying second-hand can be a bit of a problem. You need to get help from the "experts" and try to have a wider selection of similar equipment.

I don't think your project is a good one, because the more specialized a machine shop is, the more trouble it can be. There is too much and too many types of equipment needed. Funding is a permanent problem. I have a deep experience (too difficult)

For your specific requirements, I suggest the following main equipment:

Lathe C6140, 1 meter 5 long, Shenyang No.1 Machine Tool Factory (new 45,000)

Milling machine X62W, Beijing No.1 Machine Tool Factory (new 110,000, the old one is at least 50,000 several thousand)

Wire-cutting machine 7725, Taizhou production (new) Small 30,000)

Grinding machine (new on the trouble, the old also 40,000 - 70,000)

Just dry not to mention what "with the ratio of turning, milling, grinding machine". The same one is very difficult.

To say a little off-topic, in addition to the equipment you have to do three psychological preparation: 1 is tired 2 is to hold his breath 3 is no money in hand.

I am a person who has been there and knows it, and all of the above is from the bottom of my heart.