When I bought my kit, the base was 19,999. I put on about about 7k in options, aerotail, dual brakes, adjustable pedals, quick build wings, LLE, etc. Things that if I wanted them, they needed to be installed right away. Everything else I pretty much left out. Believe me, that initial kit will keep you going for quite a while. I went the used engine, prop, and avionics route. There are things you will have to spend money on and things you can find deals on. It’s also a learning curve to learn when you should spend the money because it’s cheaper in the long run. But the good news is if you space out a lot of the purchases, you can get started, get on the forum, and then you will slowly pick up on what others have done. The plane I have today almost ready to fly is a lot different than the plane I had imagined when I first started my kick...and that evolution is a good thing.