Questions about Turbocharging (I know)

[Kyngfish]

Alright, so I’m almost done sorting out the gremlins and wrapping up a suspension refresh on my 800 dollar 300E. It’s running fine, and now that we are aligned and all the rattles and shakes are fixed, it’s time to start thinking about the engine. I’ve looked through threads about turbocharging and I had a few basic questions:

1. On the M103 engine, if my target is between 350 and 400hp, I can keep the stock internals and fuel delivery system correct?

2. I only see three options for the turbo manifold. There’s a company that casts them out of Australia, retrofitting a diesel manifold, which based on the threads seems like a PITA, and the guys out of Poland that make an equal length manifold for a bit more. Are there any other options?

3. IS the differential up to the task of 300-400 crank hp? If not, what are the options?

4. I’ll probably grab a Dodge Ram turbo and rebuild, or just get a CX racing turbo, I know everyone hates the Chinese stuff, but I haven’t heard too much nastiness about CX racing, and this car and engine are overall pretty cheap so… anything else to consider?

I plan on ripping out the engine and at the very least a head job, and putting in new seals and etc. I’ll document my work on this thread.

Thanks!