I have some questions about the sizing of the Light Carbon 017, but only at the smallest size. Their size 52 looks pretty comparable in terms of stack and reach to an SL8 or even a size 485 V4RS (387 effective reach after their proprietary stem / headset stuff). At 168cm and change I could make either work really well for me. My custom road bike has a 520mm effective stack and a 393mm effective reach paired with a 100mm stem. Small bikes just scale different.
Based on geometry charts and taking into account the other measurements on the bike like ETT, HTA and fork offsets I would look at the following frames, some of which you have already looked into:
- SC-R52D from Speeder would be closest i know of to the V4RS, though you would need to run ~3cm of spacers under the stem which means that you would need to be pretty confident that you would be running close to <1cm of spacers on the V4RS to achieve the same fit.
- FM 1136 or 1056 from Flybike or Carbonda could be good too based on the numbers. I think there are threads on these as well here.
T
If you are looking to get the fit of a 54cm or larger Look 795 i think the Yishun 1058D and the Flybike 906-D are worth a look as well.