Hey, Sweetie! I have a couple ideas for you that might help out...
First of all, if you could PM me where about you live, I can help you find a place nearby that you can get some Timothy hay for your babes. If your mom's willing to help out by storing a bale of hay (which can be quite large, but lasts about a year), you can get one for $20 at a tack and feed place. Heck, depending on your location, I'm sure if a member lives even remotely close to you, they'd be willing to split a bale with you for cheaper. Then you'd have the freshest hay you could possibly get, for a HUGE fraction of the cost!
I'm so happy to hear you were able to find a place that'll do thes paying/neutering for a good price! That's wonderful!
Also, I have a great idea for a cheap hay rack if you don't have one already. It's called a "mud pan" and you can get one from Home Depot or Lowe's (or some such place) for about $4, and use a couple binder clips to clip it to the cage. Just take out the metal edges at the top side rims before giving it to the buns. Here's a picture of one:
Also, if you're able to find a tack and feed place near you (like I said, PM me and let me know your general whereabouts, or your city, and I can find one for you), they will also more than likely carry something called "wood pellet horse bedding" for a HUGE bag (you might need someone to help you carry it, it's that big) for about$6. If you get a small kitty litter box (for about $4), and put that in it, you can litter train your bunnies. (They will pretty much do it on their own if you either put hay in their litter box, or put their hay rack next to the box.)
To cut down on the ammonia smell in the bunnies' urine, you can get some vanilla extract (either natural or imitation) and add a bit to their water (I put 1cc per 32oz of water). The wood bedding will also help on the smell of urine.
Let's see...what else...I can't really think of anything else right now. If you have to separate the buns, because of fighting,or any some such, post something to let everyone know...we can help ya out on that, too.
So, there ya go! I hope all that helps!!
It's hard having a parent that doesn't seem to care as much about your animals as you do...I had the same situation with my mother...so I know just what you're going through. I hope the things above will help to not just cut down on the costs of everything, but also make things more tolerable for all involved (hence the advice on the ammonia smell to the urine).
So, PM me...let me know your approximate area, and I can definitely help you out a lot. Also, you can order hay online, if nothing else...but it is quite necessary for bunnies to have in their diet, so we'll all work together to help you find a solution, ok?
Hugs!
Rosie*