Baserail and balustrades with 180 degree return

[Brendan]

My staircase has a 180 degree return onto the landing. This means that the string on which I want to mount the baserail is tight to the landing near the top.  It is the same on both sides. Is it ok to trim down the baserail and balusters for this section, or do I need to come up with another solution?  
 

Cost is an issue, so I am hoping to use square profile pine for the staircase and landing. 

[Brendan]

I’ve just realised the handrail is also going to interfere with the landing in this setup. I’m going to have to think of something else, aren’t I?

[Mr Punter]

Could you mount handrail on the wall on the other side?  Just have landing balustrade at the top.

[Brendan]

It’s open on both sides. There will be vertical ply floor to ceiling on the ground floor that side, 100mm wide spaced at 25mm gaps. 

[Brendan]

I think I will probably clad this side with ply as well, then fix a handrail between the newel posts somehow. 

[FuerteStu]

Could you have a stop start handrail, with a section where is spans the floor Depth in solid block? 

 

So it appears to travel through it?