Any experts on van tyres?

Looking to order tyres from black circles for my van. 235 45 18 xl.
As they aren't standard tyres im unsure which to order. Are they just extra load ?
 
I normally run Goodyear's on my standard rims which are load rated 107t Ben, but with these rims I bought the tyres that came were I assume xl rated car tyres.
 
Commercial tyres have reinforced sidewalls. Isn't that same as XL car tyre? You got alloys on van then?