It’s not exactly the same, but UltraReverb is capable of some of the reverb and delay sounds in ModEchoVerb. I’d suggest trying UltraReverb, plus one of H949/Instant Flanger, to get some of those sounds in a plugin.
Any good starting points? Have never gotten UltraReverb to sound anywhere near as alive and smooth as modechoverb in Space pedal.
(Also, the tweakability of the H9/Space kind of gets lost. Tweaking delaytime on ModEchoVerb can result in beautiful swoshes, “breathing” and all kinds of really cool artefacts. Hard to reproduce with UltraReverb…)
Try keeping mod rate low and use mod depth to smooth out the top end. I’d recommend sticking to the Hall 2 setting, keep the room size control large. Experiment with diffusion, especially on the lower end of the range.