Possibly build a crowded kratky setup for them. 8 weeks is a LONG time in hydroponics and most plants will be at or close to maturity in that time, my general growth can reach a foot a week on some plants so unless you are growing very slow growing plants you'll have a room full of growth by plant out time.

They're tomatoes, eggplants and peppers

Chuck is anything special required to move a plant from kratky to dwc? I didn't think this was doable because of the air roots in kratky. Enlighten me! :-)