Setting up Amavis-new

Hi all, New to Amavis & Postfix since upgrading to 10.3 (now on 10.3.1 - client version), but am running it as a web/ftp/mail server - I have installed ClamAV as discussed in the articles at https://www.afp548.com/Articles/mail/postfix-sa.html but am a little stuck on the step for configuring Amavis-new by editing the /etc/amavisd.conf file - is there a sample file for this that we can refer to? Additionally, I have followed the tutorial step-by-step & word for word, but having chowned the various files such as /var/amavis - an ls -l on those files shows the user & group as lp - not clamav - is ths normal? Many thanks for any help - if you are able to email me at hmag@ozemail.com.au that would be excellent.