Great! 
Let me know what all you need!
Nothing specific, and can be as simple or as tricky as you like.
As a caveat, solids convert but not linework geometry; embedded CAD will be discarded and not added as cruft. I have stress-tested the conversions a bunch (Big models === Slow) and sadly still experience occasional inexplicable crashes ¯\(ツ)/¯. Because Navis models are always from someplace else, sometimes odd quirks arise that need ironing out.
Essentially, If you share an example file(s), I’ll run a few different conversions from the options UI I’m still working on:
- full conversion (again, big can be a pain)
- by layers,
- by selection sets
- by search sets,
- colour overrides (temporary or permanent),
- move-to-zero or real location.
All these are working just need to convert from flags embedded in code to sensible UI options. 
I’ll make a branch per contribution and probably sub-branches to that which describe what selection or transformation options have been applied. Using all the Speckle 
commenting goodness.
I have another thread where I have been thinking in public about what the object model should be and have settled on something I think works well (based only on my own needs for data QA really)
If you have other ideas 
- I’m also gathering those and super keen to receive them too.
DM me to share links here or jonathon @ stardotbmp . com