I've got a similar issue in my st165. Epic powersteering leak in one of the high pressure hoses.
Previous owner did some shotty work on it, I've got heater hoses in random places, low quality vaccum hoses in some spots, and the guy damn near welded my crankshaft pulley belt in place.
I deal with Ray @ plaizers for most of my important stuff ( Like Brakes ) and other things that are a complete whore to do without a hoist. He also looks after my Daily driver and does an awesome job and prices are reasonable.
I'm still not quite sure if I'll ever get my Power steering fixed, as I'm looking at several hundred dollars for the hose, then possibly more for labour to get someone to replace it.
I've seen the members on here replace their ps pumps and hoses, and I'm not sure if it's something I want to go through, especially after I just did my timing belt/water pump.
Having no PS is fun at times, annoying at other times.