FW: Apache/Tomcat web server to use with Piranha

 Dear All,

           Please help me by sharing your knowledge on following points.

       I am assigned to set up a 2-Node Apache/Tomcat  Webserver in Loadbalancing and Failover mode operation with RedHat Linux 8.0 or RHAS 2.1. Database Server is connected at the back-end.Here LVS(Piranha) seems to suit, but still please see the following concerns 

1) We can't have 4 machines (2 LVS routers + 2 Real Servers).Both should be the same 2 Servers.Existing 2 Servers are having 2 NICs onboard.
2)Both Apache and Tomcat will be running in each server.

Queries:
  1)Can we go for LVS/Piranha here?
  2)How many IP addresses will I need when we configure LVS routers and Apache web servers on same machine?
  3)Will I need to make use of both NICs/machine here? OR is it enough to use single interface(say eth0)?
  4)Which IP I can set as Server name in Apache config file (/etc/httpd/conf/httpd.conf ) If I use NAT routing method?
  5)which routing method I can choose for an easy solution?
  6)Can I install Piranha in RedHat 8.0 or 7.3 ? If yes where can I download the piranha rpms for these versions from?

A simple solution from anyone will be highly appreciated .I believe I could get your help.

Thanks &Regards,
Sumesh