Trust me, you'll love the V3 conversion, I've had mine for 5 years now & it's still brilliant, at that price you're getting a good deal provided the diff, rack, arms, engine mounts etc are thrown in at the same price.
If both cars are 97 (old shape dash) the speedo will fit straight in & work though it will be cable but he'll take care of that, you'll just be limited to 180kph unless you get a HKS speed converter.

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Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.

^^Sound like pimpreza is pretty happy with the swap.
I only got that quote a couple of weeks ago. So the price is still current but I haven't quite decided on what i'm after yet but a V3-4 definitely looks to be the most cost effective.