well i think it could be done but its also a big problem in that GFO is made up of many many other mods and not all of those can be converted to work for v1.4
what you can do is use the mods list i included with GFO and check those mods for v1.4 compatability, maybe PM the mod maker and ask about it. you might be able to get around 60% of GFO to work with 1.4
best solution:
you can buy the silent hunter 4 gold edition that has the sh4 game AND the UBM v1.5 ad-on both on disk for only $10 and free shipping at newegg.com so i really really suggest you buy it for yourself and say its from santa lol
its getting so hard to find the v1.4 mods nowadays and more and more v1.5 only mods are made every day so it really has gotten to the point where if your going to keep playing sh4 and you want to use the mods that are made for it then you need to get v1.5
make sure you buy the GOLD EDITION
find it here:
http://www.newegg.com/Product/Produc...-057-_-Product
if they dont restock it at that price then get it at amazon through the subsim store so neal gets a commision:
http://www.subsim.com/store.html