C70 T5 replacement engine: which fits?

Hello Elkfriends I’ve had a very sad day yesterday: my 2000 C70 T5 with hand-operated gear has suffered a capital engine damage. ( I know it’s not worth it, but I’m still thinking about getting a replacement engine. But which one? Would a T5 engine from a V70 or S70 fit? What do I have to pay attention to? Does the vintage play a role, or the gearbox type or anything else? I’m totally overwhelmed…but I love my Volvo, and if I do it anyhow I’d rather fix it. THE MOTOR CLOTHING – THE GOODS (if you’re interested) – I’d like to explain to you as detailed as possible what I’ve experienced since I didn’t find anything about the sounds in the forum. Maybe it helps the next of you: everything started with a quiet clack that I noticed for the first time about 2500km ago. It sounded (-acoustically) like a metal part (screw or something) shaking around in the end pot. would, it was (rhythmic) regular and increased with the speed. At first it was audible only in 1th and 2nd gear ** between 2300-3000 Umin, and only with gentle (!!) acceleration (as soon as the load was increased or taken away, the noise was also gone. **With time also in 3rd gear). At the Volvo garage I was told that it was the clutch back bearing, which will be announced and eventually come. But this could take a long time, I should just drive further. Well, I have no idea of cars, but a great technical imagination) never really believed this, because there was absolutely no grinding noise, only this clacking. In addition, the clutch was replaced before about 30’000Km. Of a motor problem you didn’t want to know anything in the garage! I have read and searched a lot here in the forum, but found nothing. I thought about many things, if maybe the timing belt has a crack and a half torn piece at every turn. I was suddenly on the highway and I could hear it. At the next stop I stopped and called the Volvo workshop, because I was really afraid to continue driving. It was very surprised that this backlog had already “come” so quickly, but held on to the backlog theory. So I drove on another 20Km, because I had a K. On the way back there was suddenly a rumble, then everything was over. Down in the engine block is a fist-large hole. The garage, which towed me off, thinks there was probably a vacuum in the oil circuit (possibly by clogged sieve, defective pump, etc.), which damaged the conrod bearing and so on. Motor choice: Who can help me? I would be super happy for your advice.