You can learn it. It's not that hard after all. I find it rather usefull to being able to create prop models, as they offer a higher level of detail because their polygons are rendered faster. A disadvantage however is their lighting as it uses the light intensity of the ground below it for it's lighting intentsity. In this case, that wouldn't be a problem though.
But well, learning modeling takes some time so in this case, you'd either leave it the way it is now or you can find some free prop models. There must be some out there...