Always handy if there's a local track? The further away , the more the transport costs. You could hire a bike to start with, but trackbikes aren't too expensive. Find a reliable 400 or 600 , preferably with spare wheels for wet tyres. Ideally find someone that has just packed in and wants to sell everything. You will need a vehicle. Van is best , but loads have a car, towbar and trailer. Buy economical ,reliable, not fast. If you have paid £200 for a trackday, you want to make sure you get there. Similarly an reliable, safe trackbike is more important than a fast one. Good luck.