I've wet cleaned viscose suites before, just keep prespray to a minimum and dry stroke 3 or 4 times after extraction. Also towel down and make sure the pile is set the correct way.I'd suggest a fine mist of micro splitter and light brushing for the prespray.
Solvent cleaning is ok but i stopped using it for health reason's...masked up ,gloves on and i still used to come out high as a kite !
If its a trashed suite then walk away ..solvent wouldn't touch it anyway.