If you get the TR220 I would get some 918 springs and hardened push rods. Otherwise do not extend the rev limit. That is a lot of lift for the stock springs. Here are the stock cam specs so you can get an idea of the baseline you are working from.

1998-2000: 202/210 .492/.492 116 LSA
2001-2002: 198/197 .478/.478 115 LSA