Buy a prepped trackbike. Way cheaper and easier. I bought a used YZF600 streetbike for my first racebike, and spent a yr and over $3000 more just turning it into a racebike. My next one, I made sure to buy a prepped bike,and raced it a half hr later.
Plus, dropping your streetbike will cost you more in repairs than a whole prepped racebike will.
Buy my 99 R6 racebike. HAs been on the podium at in SOAR Lost Era 25 times in the past 3 yrs. Competitive,and race ready, Ohlins steering damper, Sato rearsets, Woodcraft clipons, braided brake lines, Vesrah brake pads, DID gold X-ring chain, Hindle full exhaust, synth. oil changed regularly, rain tires incl, comes with spares etc....all decals will be removed, fairings were new, never repaired, never crashed, Recent paintjob in pearl copper.
For the easy no dicker price of:
$2200 with Fox freshly Sharrard rebuilt shock, or $1700 with OEM YAmaha shock.
Will throw in some used scrub race tires to get you started.
Pm'ed