The build is finished, but not without some issues...

Mounting the humbuckers was very tough...not being able to see inside...and I made some measurement mistakes in my head...the distance between the holes for the screws should have been bigger than that on the humbucker itself...with some force and pressure it worked, but is very tight now...

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Second is the outputjack...somehow I had no signal at the hot end, but on the one for battery I had signal...is it a mistake? The bass sounds a bit more quiet, comapred to my IB-4...maybe this connection is wrong?

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And I am not sure about the height of the action. Somewhere I read that on a fretless bass the string height is much lower than on the normal one...atm I have some rattling on the first 5 "frets" on every string...but I can not go much lower with the bridge for example...
Only thing I have still to check is the bend of the neck, it seemed quiet straight...

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So, I have to check out some of the issues but some tones are coming out already...quiet dark and deep...

And I went for the Thunderbird Jazz Bass wiring, nothing special