I love my '99 Subaru Outback. (Legacy with lifter blocks under the suspension). It will run dirt roads fastest of anything I've owned. This road is typical, with a few 'slow to 5mph' obstacles in between 35mph stretches.
Subaru's AWD is really front wheel drive with rear wheel assist. The AWD engages, softly, as the wheel speed sensors sense the front wheels turning faster than the rears. (A/T version) The M/T version has the same effect but by binding up the front-rear open differential when speeds differ. This is excellent for maintaining traction at speed, on dirt or snow, basically rally conditions, because it prevents the front wheels from losing traction.
However - it's no offroad vehicle. The limited wheel travel and low clearance make it unsuitable for low speed rock-crawling. When I visit the mining claim I come down this grade dead-slow.
The lowest point underneath is a thousand dollars worth of exhaust manifolds. The pipes from the two sides meet at two catalytic converters right under the driver's set. High-center it and you've trashed the car. Even fabricating a suitable armored replacement would be a substantial project.
At the mining claim the only way out is steep, loose, rough and while climbing you have to cross gullys a foot deep, on a diagonal. Insufficient wheel travel left me with tires spinning the last time I was up there and it took several tries to climb that grade. Filling the gullies with rocks didn't help, they got tossed everywhere. I finally pruned the bushes on the left to run my tires on that relatively even surface.
I use mine often with a one ton trailer, in place of pickup truck, to take ladders down in the orchard for harvest or for general hauling. I bought the A/T version specifically to get maximum torque at zero mph, for example for for climbing out of a ditch delicately instead of with one big clutch-dumping lurch. There isn't any low range but the A/T torque converter gives gearing that can spin all four wheels.
In summary - it's a road car. You might use a cut down one as a dune buggy, at speed, but forget jeep-type bouldercrawling.
Those engines and drivetrains are popular. Those components are light, indestructible, and unique among FWD's in that the transmission is behind the engine like a RWD which makes adapting it a lot easier. I suggest sell the drivetrain.
