Damage to varnish /coating on my BT 4

[Jo Dorn]

There's a small 'whole' in the varnish on the front of my BT 4 as a result of an 'accident' (our guitarist pushed his tuners into my bass ).
The damage has the size of a cent-coin with rather uneven edgings. The bass ha a quilted maple top and is varnished with a clear coating (? the coating looks much more golden than the pure wood which can be seen in the 'whole'). Although it has been there for quite some years it's starting to annoy me more and more on this otherwise perfect instrument. I'm wondering whether there is a chance to fill it up / repair it. What kind of varnish would you guys use? Would you try to do it yourself? How would you apply it?
I don't think I will be able to give it to the Ken Smith people as I live over in Germany. Is there any luthier/expert over here you would recommend for this job?

Many thanks in advance,

Jo