Block traffic and redirect to error page without web proxy?

Hi everybody!

On RB750 and network with little more than 100 hosts I have three set of address lists, which contains ip adresses of hosts (I cannot use range, because they are all random - it’s the way it was before RB).
Everything is working fine with firewall, on one address list everything is blocked except few ip adresses on 80 port, on second list there are about 20 or maube more web locations that are enabled and rest is blocked, on third everything is enabled.

Is there a way to redirect those blocked web traffic on error html page which is on some web server outside, without enabling Web proxy on RB?
Sorry if this is a dumb question, i’ve searched forum and web and there is no word on this subject - everybody uses web proxy.

Thank you in advance..