You could make edible 1:1 by mixing 1g of THC distillate and 1g of CBD isolate into warm organic MCT oil. At that point I would leave it as a tincture in a dropper bottle but that could get syringed into gel caps too.
That has potential to be cost effective if you're getting a good deal on those products. It would lack cannabinoids besides THC and CBD which is said to have less medicating properties than full spectrum. Personally I've used isolated 99% CBD/THC and found they work sufficiently for sleep and pain relief on their own and mixed together.
Otherwise the lowest price I know of is about $2.1/ per 25mg 1:1 full spectrum mixed with MCT oil caps in 25 packs from Sweet Mary. Or the cheaper $59 for an 800mg 1:1 full spectrum MCT oil tincture (30ml). Needs
the 20% discount to get those prices and there's 4:1 ratio and 10mg sizes as well. I'm not sure how that compares to your current price but having tried the tincture I'm able to vouch for its effectiveness.