I solved the pre-TN problem in my own database forays by adding the installations Basic Industry and University, as well as the Industrial and Space Age techs. Basic industry is the same construction value as Conventional with nothing else, while requiring 500k taxable basic labourers (ten times the required workers of Conventional Industry). Universities cost 600 wealth and provide 0.05 research value, 0.02 academy value, and require 50k workers. Industrial Tech unlocks the Military Academy, GFCC, Financial Centre, Conventional Industry (requiring no minerals, but 1200 wealth), and the ability to convert Basic Industry to Conventional for 1100 wealth (on top of the 120 wealth cost of Basic Industry). Space Age unlocks infrastructure, DSTs, shipyards, spaceports, and cargo/refueling/ordnance stations. Forced Labour was included in a separate tech. The rest were unlocked by TN as in the base game. Costs of the techs were 1,000 and 2,000, comparable to TN at 5,000.
This would mean you'd require 20 Universities to match a Research Facility, 50 to match a Military Academy, and 10 Basic Industry requiring 5 million workers to match a Construction Factory requiring 50k.
That's how I did it, anyway!