Questions about the V70 II. Engines, gearboxes, weak points

I have already read a lot and found a lot about the Sufu. But unfortunately not everything yet. I would like to buy a V70II in the near future, built around the 2000 to 2002 to max 200000. On the engine side my first choice would be the 200 HP machine. If the price is unbeatable, there would also be a 170 Psler. In any case there should be an AT transmission in it. Now I have often read that the Geartronics should not be so doll. Can you confirm that so? And if so, why not? And if I should find one that has this gearbox in it, what should I pay careful attention to when buying. To the engines. Running speeds up to 200000 are like I read this so no problem, if you are reasonably waiting. Are there still weak points on which I should pay attention. Unfortunately, the front axles are a bit overwhelmed with the heavy car. so much I already know. Are there no further weak points at possible the price to press. Is there a diagnostic device with which I can read/delete the error memory. I have something like this for my Opels. This can be used to program, read, delete, to make comparison and much more. Basically, I’m quite fit as a former car. But it’s also been 10 years since the screwdriving and I simply lack the experience with Volvo. Unfortunately, I can’t find the Elchwiki page anymore. Can someone send me links? Would I be happy about your experiences if you give them to the best.