Lima O Gauge class 33 upgrades?

[JeffP]

I've had one of these, bought brand new from a local model shop, since they were introduced.

I know about the upgrade kit from PRMRP, but am also aware that the moulds were lost after the first sale of the range, and the current white metal offerings are, shall we say, not of the finest detail?

Last night, while browsing a well known auction site, I came across bogie sides and cab interiors 3-D printed.

Now as an avid reader of this site, Facebook etc, I'm also aware that 3-D printed items also can have problems. Layering, brittleness etc.

So....has anyone any experience of the 3-D items above, before I part with my money?😊