I just took delivery yesterday of a used (1000 hr) ad30 and dp outdrive. I am planning on repowering the Hook with this. Thanks Mike for the lead on this deal. I think it looks to be in pretty good shape although I dont yet know the ins and outs as to what to look for. I plan to keep this engine and drive in my garage and go through it, replacing the easy stuff like hoses, impeller, oil and fuel filter etc. I would love it if one of you veterns could stop by my house some day soon and check it out visually and give me some pointers as to what to look for, replace or check into. The outdrive looks like a 280 with a dp on the lower but I cant tell. I would love it if I could take the lower off of it and bolt it on my current 280. That would save some work and money for me and whomever installs it. Recommendations on an install would be great too. I am thinking I may want to bite the bullet and have the Blackmans do it. That way I know it will be right. Anyway. I do have a few questions here.

Where is the best place to get a good mechanics manual.
Where is a good place online to browse parts and to get them online or local.
Big question: Is this going to fit in my Blackman 20. Looks a little big.
What are some of key areas on this motor that I should be focusing on.

I know I should have researched some of these questions prior to making the purchase, but it was ebay and I needed to pull the trigger when I did. Besides, for 3,500 bucks for everything, it was worth the gamble. If this pans out, I could end up with a really nice diesel skiff. Thats the plan. Any help and or input would be great.
Thanks for your time.