Hunting for next mower

We need fast and nimble rear wheel no frills work horse. Drove Huskvarna with 700 Briggs into ground on tough 1/3 major obstical lawn with garden over 9 years. Would like craftsman rear wheel basic but with bigger engine than 150cc OHV. Or Honda HRR 216 with out variable speed.
Question: Is there a source for mixing mowing decks with engines?
Thanks for any ideas.
Mer