I think it's a great idea to start your own forklift repair business. You already have three years of experience operating Crown forklifts, mostly electric. This gives you a good foundation to start your own business.

Of course, you can also work for another company to gain experience with other brands and diesel/propane forklifts. This may be a good idea if you want to expand your knowledge and experience. However, if you want to start your own business, then you don't have to wait until you get experience with other brands.

Don't forget cybersecurity, it is a very important aspect of any business.

I wish you success in starting your own forklift repair business!