Maintenance parts List ?

I bought a 91 sport that had been sitting out in the weather all last summer and I bought it about Mid Fall.   
I fired it up with the "fake a Lake" and it ran great sitting in the yard. Its only showing a little over 300hrs on the meter. Mega rich people bought it for their kids, and they beat the crap out of the bottom, and left it for dead.   But I got that all fixed and she's looking good. I was going to service everything now that the weathers warmed up.
Can someone give me a list of things that need changed so I won't miss anything that I'm not aware of besides the Oil and filter. When I fired it up in the yard some nasty looking water came out ( I was expecting that ) but it cleared up with in a few minutes
Thanks.

lube up the steering cable and rudder ports
clean battery connections
spray down engine with CRC 6-56
spark plug check
look over the entire electrical
check all through hull clamps and fittings

http://www.crcindustries.com/marine/content/prod_detail.aspx?PN=06005&S=N

the best corrosion inhibitor or fluid film

wd-40 is ok
corrosion block leaves a sticky film

I did not read through it to determine if there is a tuneup checklist, but there is a 1991 owner's manual in the reference section of this website. BKH

Phil, I wouldn't do the packing unless it is leaking.

As far as using a additive in the trans, our trans expert Eric highly recommends any additive you can find. This gives him more trans work this time of the year after the additives have swelled all the seals to the size of donuts and plugged up all the passages!!
NO on the additives!!

you may only get 1 1/2 qts. out of the transmission. and don't put more than 2 qts. back in.

Autolite plugs will run the best save your money and don't get platnium plugs unless you've replace the ignition system with high output system.

If you change the plugs yearly you can use regular automotive grade otherwise order the marine grade that use S.S.