CorneECRevival VS EC60

I'm looking into open-source projects for EC keebs, mainly to determine if it's worth investing in for my end-game setup. And more importantly, whether it's even build-able as prototypes. So far what I've found are: this article from 2017 with design guides & known projects at the time, wireless EC Corne builds (1,2,3), and this EC87 (non-split, QMK).

have you seen this? https://github.com/Cipulot/CorneECRevival

You don't have many options when come to ergo topre-like keyboard TBO. There are CorneECRevival and dometyl if you want a concave keyboard, but dometyl is not easy to build for the first-time user. But the demand for topre is growing. We already have sliders and housing from Deskeys. If someone can make a custom conical ring we could have a complete custom topre board.

corne EC on Github

I don't need keycaps nor the rest of the keyboard, I plan to build a custom EC keyboard and I'm on a very low budget (context: getting a new job, need a silent keyboard since my quiet one is dead). I can't spend more than €70 including shipping to Italy, which I understand that is quite tight, but my standards are quite low too.