[chumbucket]

Glad to hear it's finally get worked on. Brackets are nice, butfor what you're going to be doing with the boat, I don't think I'd bother. It would require the transom to be all redone. Add the expense of that coupled with the cost of a bracket, then all new control cables, steering cable, gas line hose, and possibly wiring (depending on if they'll reach or not) and I don't think it'd be worth it. If you were redoing a former I/O like macojoe did, then I'd say go for it because all that has to be done anyways.
As far as finding just the tabs and cylinders, check Ebay. You might find something there.