I think that while it's important to consider how you'd like it to sound in terms of effects and dynamics, getting into playback on finale is in itself kind of iffy 
Finale really isn't and shouldn't be the last stage of production for any piece of music that isn't just meant as a formative/educational experience for the composer (as in, something that won't be performed or fleshed out in a DAW). In the professional world, it's only ever used as a means to convey information to live performers, and even then, so much of the dynamic and stylistic decision-making is done in rehearsal, performance, recording, etc. (I guess it's possible that people might also use it to visualize a piece before working it out in a DAW, but even the few who would use notation software for that would likely be using sibelius to do so)
I do agree that, in a good recording, it would be ideal to have some sort of effect to signify the cavernous space, but I think that'd be much better represented by an ensemble-wide reverb than a single echo. An identical part at a lower volume an eighth note later would end up sounding pretty mechanical and arbitrary imo

Finale really isn't and shouldn't be the last stage of production for any piece of music that isn't just meant as a formative/educational experience for the composer (as in, something that won't be performed or fleshed out in a DAW). In the professional world, it's only ever used as a means to convey information to live performers, and even then, so much of the dynamic and stylistic decision-making is done in rehearsal, performance, recording, etc. (I guess it's possible that people might also use it to visualize a piece before working it out in a DAW, but even the few who would use notation software for that would likely be using sibelius to do so)
I do agree that, in a good recording, it would be ideal to have some sort of effect to signify the cavernous space, but I think that'd be much better represented by an ensemble-wide reverb than a single echo. An identical part at a lower volume an eighth note later would end up sounding pretty mechanical and arbitrary imo