1998 - ec250 engine stripped

[savage sausage]

Ok so I've stripped down the engine and have found some interesting if not alarming things also
Firstly the stator/ignition is absolutely filthy mud grime water induction etc (see pics ) should I junk this and just buy another?? What benefits will a new ignition make?
Secondly there are some nasty gouges/grooves where the crankshaft has been flopping about, is this a concern or will a bit of emery cloth sort it out?

The engine castings are shoddy to say the least, you would never see this on a Japanese engine I'll bet.
Is it worth tiding them up with a carbide burr?
I also see like a pointy cast near where the kicker goes is it designed to be like this or again just $h1t castings.

It honestly looks like this is the first time the engine has been apart since 98 some of the bearings are ok and some fcuked I'm gonna replace them all anyway

What's the deal with these two bolts one in the bottom of the crankcase and another seemingly pointless one

One let thing I noticed this indentation is this bad or can it be smoothed out

I really don't want to be spending any more than I have really say on a set of crank cases

Some handy hints and tips will be thoroughly welcomed

Sorry stupid iPhone won't let me upload multiple pics

Thanks