I'm a saddlefitter, and I agree that both of your saddle options aren't very good choices, both from your horse's perspective and your comfort. I think you would be better off if you wait a bit and find something that costs a bit more but would be more suitable. You can find nice used older style Crosby or Stubben saddles quite inexpensively on eBay
or other used equipment websites, and it would be a better option for you. Or if you wanted to try synthetic, used Wintecs are quite inexpensive as well and work well for many horses, and are available in several styles. I have seen a couple of Rivella saddles recently for about $300 in excellent condition, and they are also nice.