If your good and have the right tools figure on about 12-15 hours of work. It is a drop in installation. With the engine your looking at replacing the engine harness, the radiator and computer. You have two options salvage yard, or remanufactured. A used Turbo motor will run between $500 and $800 with under 100K miles. A remanufactured motor your looking at $2300 from a private source(1 yr warranty) to $2995 at a Volvo dealer (2 year warranty). The transmission can be had from a salvage yard for M46(4sp elec OD) or M47(true 5sp)$250 to $500. Just remember you need the pedals, consol insert, flywheel, and a driveshaft from a 700 that mates up to that transmission. Autos, M46, M47 all have different length driveshafts. You can use a 240 transmission you just need the transmission mounts, shifter and linkage and a 700 flywheel. A new clutch, throw out bearing, and pressure plate will run under $300. You can use a cable or hydraulic clutch. The cable is $85 to go hydralic it will probably run $500 for needed parts.