My Zeiss:
https://collection.sciencemuseumgroup.o ... microscopy
I want to buy a new scope (let's say I can afford up to 3,000 Eur) and I fancied the Motic BA310 or BA410 trinocular (maybe this comes a bit over 3,000

After joining this forum and reading a number of posts, I often see the suggestion to update an old big-five-brand microscope instead of going to a new Asian scope, despite their good reviews and specs. The thing is that after using the old scope I relished with the idea of buying a new scope after saving enough.
So what do advice with that budget ?
Some burning questions:
Is the Motic BA410 a great scope overall ?
How would u suggest to upgrade the current Zeiss with that budget?
Can I change the nose head to have a trinocular option, or that is impossible or not economically feasible?
Thank you in advance