Well REDWA, It seems the only option is to cut down the trees.
You have no friends with chainsaws?
If not, seeing as you have a computer, join craigslist,org and surf around for somebody who would do this for you for no charge - just to get the firewood. If'n you know how to barter, you might...
redwa, You might reconfigure the run so it's long and narrow so you can cover it with a tarp or netting, or you could find somebody who could take out the trees for the wood. For instance a pulp mill. Depends where you live. Or, you could move everything to a clear space, or under deciduous...