As Franky would say D I Y!
Use a clear plastic sleeve with your carbon and or f glass inbetween. The plastic is not so thin it would rip or tear easy but not so thick as to not be plyable. The plastic covering on new bed matteresses seems to be the correct thickness.
Add epoxy, close, fold the sleeve and use a rounded edge plastic spatula on top of your plasitic to work in the epoxy. About 3 wide inches seems ok.
You will see the carbon go glossy black and f glass go clear, make sure you pass everywhere several times.
Seems to inpreg better if you pull the epoxy with the fiber direction, like 45° for bi bias and 90° for tafata, and one way with uni.
You will know you have a good ratio of epoxy to fabrick when it is JUST fully wets with firm pressure with your spreading tool.
Flip your sleeve and pull the epoxy into the fabrick on this side as well.
You will see that you pull the excess epoxy out to the fabrick edges meaning your ratio is good!
I have done many lay ups like this and seems to work just fine always vac sacking and moderate heat.
Maybe try this on your next lay up.