How can deblend this ?

[lastchance22]

Hi,
I’m currently working on encoding a DVD source and I’m trying to achieve the best possible final quality, but I’ve run into several issues.
The main problem is noticeable ghosting/blending (likely caused by a poor deinterlacing or blending process). I’ve already tried a few deblending methods, but none of them gave truly satisfying results — the ghosting is still quite visible, especially in motion scenes.
More generally, I’d like to properly clean up the source before encoding. So I’m not only looking for advice on deblending, but also on the overall best workflow and filters to improve the final result.
For example:

• Proper way to handle this kind of blended/interlaced source
  
• Recommended deinterlacing / deblending settings or filters
  
• Whether additional steps like denoising, debanding, or sharpening would help (and in what order)
  
• Any specific encoding settings that would preserve as much detail as possible
  

I’ve attached a short sample clip so you can see exactly what I’m dealing with.
My goal is to get a clean and efficient encode (likely in HEVC/x265) without introducing artifacts or losing too much detail.
Any advice or recommended workflow would be greatly appreciated.

Thanks in advance!


http://titant.free.fr/tmp/B1_t00.mkv