Hellooah

I wanna upgrade my A500 with these components:

Fatter Agnus - found in ol' miggy A600
and Kickstart 2.04 / 2.05 (i have all versions) - cuz I need more compatible WB apps

Just wanna ask if I can JUST put the chips in the sockets or if I must do somethin' more difficult.

Has some guy experience?
Motherboard revision = 6A && 1 Meg RAM and new Chinon FD (ol' ROM = 1.3)