You make me laugh, Rose!!!!!! Truly, you are a blessing, you know that??
Give yer hubby a big ol bee kiss! Hey...do they do any tree trimming and removal in your area? Some of those companies love to find folks who will take the ground up tree off their hands because they have to pay to dump it at the landfills. They will come and dump it at your place for free if they are nearby and this is a great way to get free litter materials.
Another way is to find small sawmills in the area...I'd advertise to find those folks. They often have a surplus of sawdust they need to get rid of...we did that for years at one place I lived to place deep litter under meat rabbits and chickens. We would get big trailer loads of the stuff and bring it home..FREE. With the size of your coop and run, you will need mega materials to keep it at a depth that will provide good habitat.
Another cool thing to do in a run of that size is to provide different areas of being....roosts, stumps, rocks, etc. If one is not raking a run, they don't have to worry about these obstacles and occasionally they can be turned over so the birds can eat the worms and bugs hiding under them.
Another source of good litter materials that will add texture and air flow in the bedding is corn stalks. Folks decorate with them at Halloween and some folks who grow sweet corn usually don't have a place to put them when they clean out the garden. Try to snatch all of those you can...they make great compost as they break down a little slower due to their fibrous and woody nature.
While you are at it, you might want to ask for any pumpkins those folks may have after they are done using them for decoration...and then store them for the winter somewhere cool and dry. Let them ferment and use them to supplement nutrition during the winter months and also provide deworming from the seed consumption.
Plenty of ways to score free bedding if you are resourceful and also some free nutrition!