Monster Hunter Portable 3rd (HD Ver. or not)

[Anomaly007]

My wife and i have been playing monster hunter portable 3rd using evolve and an adhoc server me being the host on 2 different pc. It has been great fun. Problem is internet bill is coming up soon and may not have the money and you know how pesky these bills can be no pay no play. Have searched and searched the forums for anyone trying to do this and found nada.
I would like to connect my wife's pc to my pc adhoc server so we can connect our ppsspp together with no pesky internet. I have a lot of tools i have my own modem i can use to set up a lan no internet between the 2 pc. Im not a tech wizard tho so not sure what all to do to set up the lan, adjust firewall, set up port, offline IP address? idk
I know this is a bit technical and complicated but dont say it cant be done. Where there is a will there is a way.
Thanks to ppsspp for an awesome emu i had to pawn my psp a long time ago ive owned 2 of them so i finally get to play all my old games again.