1993 Seaswirl replace transom and floor

[getoutdoors]

I have a 1993 190SE Seaswirl with a OMC Cobra 5.0 inboard/sterndrive. I know I have to replace the transom, the motor mounts and at least the floor in the same area. I assume that I will have to wait until I get this area removed before I can assess the rest of the issues that may need repair. I have ordered a service manual, but is there anything special I should know before I start removing the sterndrive and motor? I am sure with this much to be done the strings will have to be replace too... right? Thanks for your help!