That's a smoking hot bike, limewave. I hope your husband enjoys it for a long time to come.
I'm sorry to hear about the circumstances that caused your friend to consider selling it. Has he tried a recumbent yet? My Dh has tried his friend's catrike and said it's wicked fast. He said if he ever can't ride a traditional bike, he'd get himself one of those.
Everything in moderation, including moderation.
2007 Rodriguez Adventure/B72
2009 Masi Soulville Mixte/B18
1997 Trek 820 Step-thru Xtracycle/B17