Others:
- Jconcepts BJ4
- AE B44
- Hot Bodies D4 (copy of BJ4)
and others.
ZX5 comes in RTR form and kit form and is best value for money. The Tamiya kit will be harder to get parts for than the Kyosho.
ZX5
Parts -
http://www.amainhobbies.com/index.php/cPath/1_25_232
Hop Ups -
http://www.amainhobbies.com/index.php/cPath/1_24_233