Mx suspension?

[450racer#53]

Im looking for mx suspension i race "A" and "B" classes at a local track i dont want to spend that much money, so i was wonering what to get . I was thinking Gt thunder kit, Tcs zps, or pep race. i was thinkin Gt thunder cause its the cheapest and its uses stock shocks heres the link.
http://www.gtthunder.com/TRX450R.html