I LSR both cars and bikes. I started with cars, then added the bikes and I can tell you that on the bikes it's what you wear that you have to get right. I'd wait until the rulebook comes, then concentrate first on the leathers/helmet and then the safety stuff for the bike.
Speaking of trailers, look for a good used one. Several years ago I found one for my Busa that a fellow had outgrown. He was racing 2 bikes (Busa and 1K) and wanted to race 3. Cost me $1200. I've put about 20K miles on it since.