If you've got the budget, go with Wasson. If he does the whole rig, it's flow together beautifully. Another thing to look out for is interchangability of parts. Some armours just aren't compatible because of sizing differences. It's not the armourer's fault either, just if you're dead set on multiple armourers, at least make sure they know what the designs are going to look like to accommodate them. (Especially if you've got fluting)
BTW, Man-at-arms = Knight. In period literature, they are interchangeable. Throw out the notion of a band of pantsless mercenaries running through the countrside with a muddied and bloodied half harness and a gauntlet strapped to their head.
Men-at-arms were the posh thing to be. A knight might be a foppish couch potato with a title, but a Man-at-arms... The title really says it all