I think the steering hull side is female 1/2npt or something close. Its different than an SXR fitting.
Since I was using SXR running gear, I had to make something up:
I was able to get one of these fittings to thread in
http://www.swagelok.com/search/find_products_home.aspx?part=SS-810-1-8, had to drill out the inside of the fitting to get the steering cable to go through (I'd recomend going with a brass version of that fitting, easier to drill). The little C-clip fits perfect after removing the swagelok ferrule.
As for the trim tube, can you shine a light down it and see if something is in there or maybe put a hose down and blow it out? Maybe something is stuck or there is some resin or something.
SXR grate fits with SXR pump without much work (the lip on my ride plate was bit long, so I sanded the intake grate so they would butt up together)