First, ask if it's possible to get a machine for 100,000 yuan with a promise of obtaining a license for 15,000 yuan. If that's allowed, buy the machine for 100,000 yuan. Otherwise, your options will be very limited.
Looking back, you only wanted to take the CD exam to get your license, or perhaps also pursue a B-license during the interim. Considering your needs, would you like me to continue providing answers?