While looking up information on the Isabella Shadow canopy. I came across this one which is new to me 
Although it's quoting rail heights between 2100 and 2600 I wonder if the poles will come down down below 1700 in the front?
https://camping-intl.com/products/awning...4xoCk_8QAvD_BwE
https://www.google.com/search?q=isabella...lsLbN7vlNg,st:0
A bit pricey I know and there are alternatives to give the front of the Isabella Shadow some protection (Inspector_Gadget?).