The lesson here: if you need to replace your brakes, have a mechanic do it, unless you're a mechanic. If you need to replace that toilet, let a plumber do it, unless you're a plumber. If you need a liver transplant, let the surgeon do it...just let the surgeon do it.
Brokers may be the scum of the earth, but if you plan to put a good chunk of your net worth into a position, do it with a full service broker who makes sure its done right start to finish.