You won't be able to find base and clear kits cheaper than what the website I posted for you. www.tcpglobal.com If you want to save money or if that is the main issue, just buy one of their single stage urethane kits

Utech sell fleet type paint any thing from single stage to B/C not dirt cheap but not big money at all and it is good stuff I have used the base on some cars and covered it with DuPont clear with no problems at all they have clear out to but it don't buff real good it sets up like a rock but is durable as rock also. Utech was bought up by Sikkiens so if you find a Sikkiens dealer they maybe able to get you the Utech and the Utech has the tints to copy almost any color out there.