Speed & comfort are such relative terms.
Without having to go to the IDEC level.
To illustrate the prior owners of my 31' trimaran
were prepping to leave Papeete for Hawaii
and were getting a lot of grief about the unseaworthiness of their multihull
from a singlehander on a similar sized mono. This guy left a couple days before the tri and after two days of sailing the tri is passing this same monohull
. The trimarans crew is lounging on the cabin
top eating tea & crumpets, the singlehander is staring out harnessed in with a death grip on the shrouds.
This is a story of speed & comfort, but what creates that is all relative. Mono or multihull
neither is necessarily better it's a matter of what you're comfortable with.
Like Oceangirl stated you've got to use your prior experience & decide what needs to be improved on.
Use your money
to setup whatever boat well for singlehanding
. The 32' Islander that Oceangirl refered to has been setup well. Radar
, selfsteering, redundant communications