So, a used 410 is 8-10 thousand and it is probably ready for a freshen at that price so add at least $3000 brings total to $13000 and it will need to be freshened every year. Compared to a brand new crate for $5500 plus $2000 for all new bolt ons. This engine will last 60 nights before it needs to be freshened if you take care of it.
Just the facts you decide what's better.