mercruiser 4.3 inboard motor replacement cost?

I didn't winterize my 2006 caravel inboard motor in time for first hard freeze. Now I'm looking for what to expect for full engine replacement including intakes that also cracked along with all the freeze plugs that popped out.

 

You can use the carburetor, brackets, electrics, etc. which will lower the price. A long block is about $2600 and the manifolds about $400 for the pair. It will save you $3000 or so

 

What should I expect for the labor cost?

 

It is a 4.3L Mercruiser