Evinrude E185TLCRS parts

[awthacker]

I bought my V this month. It has a 1984 Evinrude 185HP on it. It started up at the time of sale. I haven't yet attempted to run it since, as I'd like to clean the fuel system first.
The tilt/trim assembly is missing completely. This is available new for $1000. Any ideas on where to get a used one and whether or not I should replace expensive parts without having any real knowledge of how well the engine runs?
I think by this weekend, I'll get a pony gas tank and try to run the engine on the hose a little. Maybe run some Seafoam through it. Any advice on how to know if the engine is any good?