If that's the red pajero with a 5vz, I've seen that and the swap looks good. Well to be very frank, if the swap is done properly like no juggars pajero is a good jeep.
5vz with auto trans with 4x4 and then you swap it in your chasis with good radiator and ac system it's pretty doable. And to be honest if you are targeting this budget it's good. Since if it was in its own system, then remember it's a white elephant with golden ears. And you can't afford its maintenance. Remember I am not talking by the book I am just letting you know that maintenance of 5vz is dirt cheap compared to a 6g74 or any mitsubishi diesels. But there's a big but which is swap should be done high quality. Everything synced properly
So get a dig at it and if it's from Islamabad, bring it to me for inspection, I'll help you in deciding whethers it's a go or miss.