Re: Wil this be compatible for a 1988/125hp??
Over here, a GOOD power tilt and trim assembly will sell for 300 and up. I did read the ad but do not remember if it came with associated wiring. Even without it, you can easily make a wire loom and relay set for almost nothing if you scavenge auto junkyards.
Personally, unlessIi have a pressing need for a T/T unit I stay away from ebay and try to use parts off a junker.
However, at 250AU, it doesn't sound like too bad a dea, land if you use paypal, you do have some measure of protection. I don't know how much because I have never needed to complain.