It's hard to decide because they are both a steal.
Carvin is tung oiled, 34' scale neck with ebony fret-board and stainless steel frets, 2 Jazz single coil Carvin pickups surround a custom made MusicMan humbucker which was made in Chicago to not have dog ears and to match 19mm string spacing. The bass has matching tung oil pot knobs, a selector switch to select the musicman from paralel, to series, to off. An Aquilar preamp was dropped in. Has a super deep tone for just a 34 scale bass and is a 5 string. I reckon it was about 1300 to make and I'm going to likely get it for $800. Only add-ons I would do would be to make a stainless steel nut to match the frets.
The Atelier is a MIJ jazz bass with the same pickup config from factory. Jazz, MM, Jazz. Has only 4 strings and it being a Japanese bass, the neck will be tiny.... incsy... bitsy.... I love that. The bass sounds great in the private videos I was sent. Owner is more of a slap guy so it's not super clear what tones I will be using will sound like. Add-ons I would like would be a hipshot D-tuner and MAYBE Bring the bridge back an inch to make it 35 inch scale. The bass sells normally for 2,000-2,500. I would be getting it at 1250.
I'm conflicted. I play 5 mostly, but I have been wanting to get a 4 string for certain things. I don't like Jazz basses enough to own a lot, but I do need 1. I've had my eye on that Carvin for 6 months and it still hasn't sold somehow. I love owning instruments few others have, and having a Japanese bass that is kind boutique fulfills my needs in that front, however, having a one of a kind bass made from a kit and customized even further would be cool too. I still have to use $300 on a new computer chair, $200 on a lighting rig for my videos, about $500 on new clothes, and $600 on a cruise ticket that my mom wanted me to take with her at the end of the year. I can make payments on that but I would prefer to knock it out. When it comes to my 4 string with a drop tuner, I was wanting to emulate a Wal bass for the longest time. Find a body from Lakland or G&L that matches a wal and then customize it to sound like one, but I'm not really a TOOL fan anymore and having a bass that sounds just like 1 guy's bass is a bit of a turn off now. I just want a 4 string that has a range of tones so I can play older stuff from funk, to Iron Maiden, to Rush. It's just there for songs that I don't need a 5th string and need to move fast over. I play Maiden and Rush on 5's, but it would be nice if I didn't have to mute that extra string.
I had found a Music Man HH for sale about $1200 off shelf price but it's not as alluring to me as these 2 basses. I nearly sold the Death Bass "Takamine GE400" to a guy in Austin but he wants 50 bucks less than what I want for it. I'm strangely attached to it and there were things I wanted to do with it, but I never play it. My friend said I should just sell it at 750 and use that money for the other basses. Hard times in the first world.