Foriegn Engines INC in Lynnwood should have some. Learn from my mistake and get a full front clip if you can afford it. I've done a 3rd gen 3sgte swap in my 1988 ST165 so I can help you out if need be as well.
The entire front end of the car cut off. Doing so makes sure that EVERYTHING is there and intact and it may also come with the rear subframe if you do that. (doesn't mean much to you but to anyone that has an alltrac that rear diff is really nice! lol) Plus you can sell the body panels/hood/bumper and interior parts to regain some of the extra cost of the front clip. Last time I spoke with Foriegn Engines they had an ST205 front clip in stock. When you are ready to start your swap let me know and I will help you out any way possible!
A full half cut isn't completely necessary. I did a ST215 swap into a ST162. Only had the motor, ECU and harness. If you're going ST165 or 185, yes I can see it being helpful because of all the little sensors & shit that are usually on the firewall.