I gave up on Adobe when it became a subscription based software. I used Photoshop extensively in my earlier days on my astronomy images and decided to buy the latest released version after the subscription base program came into effect. If an older version of Illustrator can do what you want you may still find a place that it can be purchased legally and then own that copy for that set price. It may be too long ago now but worth a look. I did that with Photoshop and use PS CS5 when needed. I'm still limited to two active installs on any two computers per their licensing structure.