I have a very inexpensive one I bought from MidwayUSA with exactly the same idea and it has worked well.
One consideration to keep in mind that’s tough to know when shopping online is the noisiness of the fabric which has been an issue for me w/ rain jackets in the past.
The one I have is several years old and a solid color rather than camo but similar to this:
https://www.midwayusa.com/product/939148725
