Lim: yank nipple with pliers n drill/tap to 1/8th npt
Most aftermarket fuel pressure regulators already have 8th inch npt threads.
The rest would probably use a short piece of silicon hose as the coupler.
If you wanted to carefully modify the map sensor and boost bypass valve nipples to use a push connect to ordinary compression you would be able to read them up but doing that on to plastic nipples of the Boost bypass valve would probably lead to very likely snapping off the nipple