Should be 28-1/2 inch black ribbed legs.
A WMS door won't be a direct fit onto a DE game. While the skins may be similar, the harness is different. Adapting the harness could be more time consuming than just respraying the existing door, if the existing door is salvageable. If the original door is beyond salvage, you may be able to move the harness from one door to the other, if you stay with the same number (or less) coin slots. I believe the door on your JP is a Coin Controls door, Coin Controls also made coin doors for Gottlieb and some of the doors for WMS, so some parts are likely interchangeable.
