Retrofit multisector connection in the basement - pressure water pipe

Hi,
I will retrofit a multi-utility connection in the basement as part of a major renovation.
Mainly because of relocating the electricity (already clarified), but the water pipe is now supposed to go through there as well.

Now the MSH is located below a horizontal DN100 drain pipe, and the water meter as well as the pressure reducer can only be installed above it (according to regulations, also 30cm above the floor).
After the pressure reducer, I am already successfully crimping with copper fittings from Viega (approved up to 16 bar).

But on the short distance of a few decimeters from the MSH (PE pipe) to the coupling at the water meter, I somehow don’t trust the press fittings in copper or PE.

Is my gut feeling deceiving me and should I crimp it in copper, or how would you execute the bend/jump around the DN100?
I will then install the meter, filter, and pressure reducer immediately after the jump in the riser. (My water supplier says that all meters also work vertically and therefore nothing special needs to be considered; side question 2: is that correct?)

Regards, David

The water surely comes to the house as a PE HD pipe. There are also screw fittings available as 90° elbows for that.

Unidelta fittings and pn12.5 pe hd pipe. Absolutely watertight if done correctly. Used both in house installations and for (proper) irrigation systems or industry/agriculture. Simply cut the pipe cleanly with a pipe cutter, remove burrs, slide the union nut and clamp onto the pipe, push the pipe into the fitting until it sits flush, slide the clamp and union nut up to the fitting and tighten firmly with pliers or a hook. There are all kinds of versions of the fittings. If connecting with threads to a meter, please seal with PTFE.