repair cost

Good afternoon, The weld on the bottom step is cracking on both sides. These are the steps going from the cockpit down to the cabin/salon. Have a 2005 Sea Ray 300 Sundancer. Located in SE Michigan, freshwater boat. My question is has anyone else encountered welds cracking on these steps? And...

trying to get idea of cost to repair several issues on my 85 34 cruisser express 1. R & R rear seal on transmision, was told was leaking 2. align motor, was told it was bad on stdbd motor 3. replace hoses on both motors, said they were dry rotted. i could maybe do the hoses..... thanks for...