I got mine soldered by kriscables.com. It was not fully built, the build service only includes soldering, so I had to assemble parts, but that was a relatively low-skill endeavor.

There are other vendors that offer similar services, and a bunch of etsy listings that offer pre-soldered lily58's. That being said, this will be relatively expensive, a barebones board (PCB + components + case + microcontrollers + labor) without switches, keycaps and cables will cost you like $200 at the very least.

It took me around 10 days to get 80 of my 100 WPM back after transitioning from 75% to Lily58, and the first few days were not fun.

That being said, Lily58 was somewhat of a compromise on my part. Ideally I'd get something with more physical keys, but stuff like Moonlander would be over €500 after taxes.

>What keyboard is this?

Looks like Corne to me.

Though if you consider getting your first split keyboard, I'd recommend something bigger, like Lily58. It's similar to Corne, but has one more row and one more thumb key on each side.

Coming from normal keyboards, it's hard enough to adjust to lack of row stagger, I don't think it's a good idea to also learn to use 40% at the same time.

It's impossible to tell from a photo which switches the keyboard uses, but the 920-010458 part number is for the version with brown switches.

Maybe something like this?

https://www.amazon.de/dp/B09HXZWVVJ

I don't like the whole gamer aesthetic but it has switches that are similar but probably slightly better than on that logitech keyboard, german layout (I assume you care about that), and it's fullsize (I assume you prefer that over tenkeyless).

In general, if you want to look for a keyboard that feels similar to G715 in your price range, look for anything with kailh box brown or gateron brown switches. Cherry MX switches will also feel like that, but they will be out of your price range (purely because of the brand, quality is similar).

There's also a version with kailh box white switches, which I think feel similar but better since they use a different mechanism to provide tactility.

https://www.amazon.de/dp/B09HXZL654

As far as I can tell, G715 uses its own clones of cherry MX switches. As long as you remember which switch you tried (blue, red or brown) on that G715, you can get similar feel with a huge number of different keyboards.

Do you have other preferences, like the size/layout, backlight, etc?

Just group buy things. There's just way too much that can go wrong with small production runs like those.

My starry night set (photo) took a year and a half even though initially it was supposed to ship in two months.

Can you connect it the other way around, PC on the right and numpad on the left?