I've taken to using a Cycling Rain Cape recently ,
the umbrella effect keeps my legs dry, pretty much, hands stay dry too.
I have a Spats, a shoe- shin cover legging to use when the weather gets heavy
this winter..

$50 will be low for a Waterproof breathable fabric feature , coated nylon will work,
who sells it and markets it is kind of secondary..

I find the seams tape bonding on my 3 layer WPB rain over-trousers goes away
after a while..
where they are sat upon, the rest of the seam tape is fine..
all brands use the same sort of seam sealing tape machines.

but ..
The inner surface of the 3 layer stuff does protect the coating.