Phase lane travel is hardcoded in sins. There is no way to change it.
Tarka warp travel would only be possible if a sins map was "open" as in all objects are connected to each other with a phase lane (there have been open maps done before). However all factions would utilize this. Not just the Tarka. It is hardcoded into the game.
Lihr stutter drive can be "simulated" within the specific ship entitys. Just have to be creative.
Vanilla sins phase space travel is almost identical to Sol Force Node drive.
The Hiver idea has merit. You can edit the speeds in which you travel through the phase gates, and speed them up through research.
Each factions phase drive charge up time, and travel speed is controled inside its respective "PlayerRaceName" entity, and can be edited. All ships are the same. There are no individual lines for specific ships. Example: Inside the PlayerTech.entity you will see these lines. I highlighted the lines you would be most interested in.
hyperspaceData
chargeUpEffectName "HyperspaceChargeUp"
chargeUpEffectNameBetweenStars "HyperspaceChargeUpSolarSystem"
chargeUpEffectNameDestabilized "HyperspaceChargeUpRed"
chargeUpEffectSoundID "HYPERSPACE_CHARGEUP"
travelEffectName "HyperspaceTravel"
travelEffectNameBetweenStars "HyperspaceTravelSolarSystem"
travelEffectNameDestabilized "HyperspaceTravelRed"
travelEffectSoundID "HYPERSPACE_TRAVEL"
exitEffectName "HyperspaceExit"
exitEffectSoundID "HYPERSPACE_EXIT"
baseHyperspaceSpeed 29500.000000
hyperspaceSpeedBetweenStarsMultiplier 24.000000
hyperspaceSpeedToFriendlyOrbitBodiesMultiplier 1.000000
baseHyperspaceAntiMatterCost 100.000000
baseHyperspaceChargeUpTime 7.000000
That is pretty much all you can do as far as editing Phase Space travel. The rest is hardcoded.
The challenge you face with a SoTS mod are the ships themselves, The research, and numourous amount of weapons upgrades. Also the research trees are fixed in sins They do not randomize like SoTS does.