Linux Userland Filesystem

I use ssh to tunnel through a firewall to a number of hosts.
To make things easier, I use my personal ssh_config file to
set up stanzas which map the host name to local ports, e.g.

Host FirstHost
HostName localhost
Port 10022
UserKnownHostsFile /home/weinberg/.ssh/FirstHost

Host SecondHost
HostName localhost
Port 10023
UserKnownHostsFile /home/weinberg/.ssh/SecondHost

where the UserKnowHostsFile contains the key for each host.

Once I set up a tunnel for each host for port 21 through the
firewall, then I can "ssh FirstHost" or "ssh SecondHost".

Ok, so my question is how to make this work smoothly with
lufs. For example, is there a way of getting sshfs to use my
ssh_config file?