I am most likely much older than most of you. I am almost 58. I began buying tools when I was a teenager. Of course, then my funds were limited so I had to get by with what I could come up with, but as years went forward when I needed a tool I somehow came up with the money.
In many cases I would buy a tool for more money than it would cost to just hire the job done. My thinking was that by doing this, I then had the tool for next time. Now that I have been collecting tools and equipment for more than 40 years, there is very little that I don't have.
I have everything from a two post lift, to my own computer wheel balancer to welders and on and on. I still have lots of collecting to do, the Lord willing, because I expect to spend another 25 or 30 years working at it.
When these jobs come along, find a way to buy the tools you need, put them away securely and take care of them. It will pay off in spades.
My $0.02,