Hip Length Raincoats

My old raincoat has seen its best days and I am also in the market for a new pair of tramping shorts. Taking a look at T7, Kathmandu, Macpac et al, the vast majority of raincoat offerings appear to be hip length as opposed to thigh length. My strategy has been thigh length with hiking shorts about the size of rugby shorts, thus avoiding waterproof over-trousers (which I find a total pain). I can't see this working with the current crop of raincoats as well as the "walk short" type shorts advertised. I read a very good NZ Tramper forum topic from 2015, where the Oringi Milford and Macpac Copland/Resolution sounded like they would be the solution here, but two out of the three are out of stock and all are fairly pricey. So, long story short, any suggestions on how to keep the undie region relatively dry, at a reasonable price, while avoiding over-trousers would be appreciated.