We also have a Briggs World Formula and Senior LO 206 class as well.
I’ve always thought people would be better off starting in lower power, lower cost, lower maintenance classes. I raced World Formula for years and only moved up to TaG when I started wanting to race regionally. I bought a World Formula brand new for just over $1000, ran it four years with only oil changes and a clutch replacement, and won a lot of club races in it. You’ll spend that much on a national motor shop doing an engine rebuild on a TaG motor, plus the cost of the engine in the first place.
Fall in love with the sport first, then you won’t mind spending the money to go faster while staying competitive.