Since none of the 1911 guru's have jumped on this, I'll attempt to help based upon my own experience.
Para Warthawg is available in a few different versions, so research what is going to fit your needs before you make a final decision on which version.
Slim hawg - single stack version
Warthawg - double stack version
Nitehawg - double stack version with night sights
If you're already familiar with the Glock 30, then you'll have some idea of the width of the grip itself. Being all metal there's a little more thickness that can be shaved on these by the manufacturer, but they are somewhat comparable in grip, though I think the Para is slightly slimmer front strap to mainspring housing.
You'll find that the slim profile of the Para slide assembly makes it a great product for carry, but you'll also notice that being an all metal pistol that there's a bit of weight to it fully loaded. You can get used to it quite easily and I strongly urge if you're an OC'er that you go leather that fits tight against the body on the Para (and any other 1911) as it can help with how much weight you notice.
The other option to the Warthawg is to look at the Para LDA (light double action). The trigger on that thing will surprise you immensely! I missed my chance to get into both pistols and somewhat regret it as I liked them both.
You can also pick up some slimmer grips to fit the double stack Hawgs so they aren't as wide, that can help a lot with hand fitment.
Good luck with your future purchase.