All you need to do is find an 850 NA wagon for a good price (preferably with a blown engine). Go on ebay and search for volvo motor or volvo engine or 850 engine/motor. You should be able to find a nice turbo motor for as cheap as $300- $1200. You will see a whole lot in between and some over the $1200 mark. You should look in the $400-$600 range. There should be a lot of engines in that price range. Dont worry about mileage, Volvo engines are built for high mileage, and are just getting started at 100,000 miles. I have well over 350,000 miles on my 850. Once you find your engine, order it, and drop it in the car. You can get the ecu from later model 850s to put in and run the turbo engine. If you find an 850R ECU it will boost the normal turbo engine up to the 850R turbo engines specs(250whp). This is your best bet. Doing a manual swap is overkill. Better and cheaper to just get the Naturally Aspirated versiuon and do an engine swap. Also, you can put later model engines in there i.e(s70,V70,s60) You are looking for the B5234,B5244,B5254 engines that end with a T(B5234T). The 2 best engines are the (B5234T - Early model R cars and T-5 cars) and the (B5254T - Late model R cars.)