So it turns out that "making a huge mothership and loading it up with cargo and people to simulate some kind of Homeworldesque diaspora" dont work so well with spoilers on ...
First system i jump into ( from the starting point in "hyperspace aka empty system with 2 JP's " ) has three terrestrial planets with every mineral counted in milions and easily terraformable planets. So naturally 5 years after unloading my 50m colonists,
stable wormhole appears...
I load my people, mines and CF plus some labs and haul ass... only to
get jumped by Precursors in the next system ... They fired some missiles at my ship but due to my 100x 1st gen CIWS they managed to just scratch my paint ( 30 rows of armour on 30mil ton ship is quite durable
) and then they proceed to ram it, destroying themselves and 9 terraform modules.
Knowing my luck, third system will containt
Swarm or hostile NPR .. :/
EDIT : Nope,
another wormhole ... Time to turn the spoilers off. My mothership design if anyone is interested :
Ark class Mothership 30 276 650 tons 146205 Crew 1370598 BP TCS 605533 TH 62500 EM 0
103 km/s Armour 30-8653 Shields 0-0 Sensors 250/250/5/5 Damage Control Rating 10000 PPV 0
Maint Life 0.11 Years MSP 282936 AFR 733330% IFR 10185.1% 1YR 2493291 5YR 37399362 Max Repair 500 MSP
Intended Deployment Time: 999 months Spare Berths 1001
Cargo 5000000 Cryogenic Berths 50000000 Cargo Handling Multiplier 1000
Fuel Harvester: 300 modules producing 12000000 litres per annum
Terraformer: 100 module(s) producing 0.1 atm per annum
Asteroid Miner: 300 module(s) producing 3600 tons per mineral per annum
125 EP Commercial Nuclear Thermal Engine (500) Power 125 Fuel Use 8.84% Signature 125 Exp 5%
Fuel Capacity 2 100 000 000 Litres Range 140.9 billion km (15837 days at full power)
CIWS-50 (100x2) Range 1000 km TS: 5000 km/s ROF 5 Base 50% To Hit
Active Search Sensor MR111-R20 (2) GPS 10000 Range 111.8m km Resolution 20
Active Search Sensor MR250-R100 (2) GPS 50000 Range 250.0m km Resolution 100
Active Search Sensor MR25-R1 (2) GPS 500 Range 25.0m km MCR 2.7m km Resolution 1
Active Search Sensor MR353-R200 (2) GPS 100000 Range 353.6m km Resolution 200
Active Search Sensor MR559-R500 (2) GPS 250000 Range 559.0m km Resolution 500
Active Search Sensor MR55-R5 (2) GPS 2500 Range 55.9m km Resolution 5
Thermal Sensor TH50-250 (2) Sensitivity 250 Detect Sig Strength 1000: 250m km
EM Detection Sensor EM50-250 (2) Sensitivity 250 Detect Sig Strength 1000: 250m km
Gravitational Survey Sensors (5) 5 Survey Points Per Hour
Geological Survey Sensors (5) 5 Survey Points Per Hour
This design is classed as a Military Vessel for maintenance purposes