Urgent HAProxy / Varnish-Nginx-Apache help needed

I have recently had a bit of luck in picking up a client who is meeting a large client tomorrow morning with some benchmarks of an optimised setup on Virt.IO, but unfortunately we still don't have any benchmarks as the pages are timing out. This is urgent work, so I can offer a small bounty in the form of either cash or LEB to anyone who comes up with the answer in good time.

The current setup is as follows:

Small VM running HAProxy as a load balancer
2x Medium VMs running Varnish on Port 80, Nginx on port 8080, in front of Apache.
1x Large VM running MySQL though this isn't currently in use as the pages we're testing with at the moment are static.

Currently, I can curl the public IP of the load balancer from the load balancer itself and it will get the Nginx default page, which is what we want at this stage.

From anywhere else, it takes several seconds and times out. I have tried to activate logging on HAProxy to syslogd but nothing is getting logged (see below).

haproxy.cfg:

global
        #uid 99
        #gid 99
        daemon
    stats socket /var/run/haproxy.stat mode 600 level admin
        maxconn 40000
        ulimit-n 81000
        log 127.0.0.1 local0 notice
        log 127.0.0.1 local1
pidfile /var/run/haproxy.pid
        defaults
        mode    http
        contimeout  4000
        clitimeout  42000
        srvtimeout  43000
        balance roundrobin
listen webfarm 91.227.223.61:80
           mode http
           stats enable
           stats auth admin:password
           balance roundrobin
           cookie web insert indirect nocache
           option httpclose
           option forwardfor
           option httpchk HEAD /check.txt HTTP/1.0
           server webA 91.227.223.58:80 cookie A check
           server webB 91.227.221.121:80 cookie B check
           option          forwardfor except 91.227.223.61
           reqadd          X-Forwarded-Proto:\ https
           reqadd          FRONT_END_HTTPS:\ on
           log     global
listen  stats :7777
        stats enable
        stats uri /
        option httpclose
        stats auth admin:password

rsyslog.conf:

...
# Save HA-Proxy logs
local0.*                                                /var/log/haproxy_0.log
local1.*                                                /var/log/haproxy_1.log

la -lah /var/log

...
-rw-------  1 root      root        0 Dec 23 12:29 haproxy
-rw-r--r--  1 root      root        0 Dec 23 20:13 haproxy_0.log
-rw-r--r--  1 root      root        0 Dec 23 20:13 haproxy_1.log
...

Let me know if anyone would like to see anything else.

Thanks in advance.