Ray
Dont fret. As long as you have tested that it can take a wet clean all will be ok.
I would advise to first take all the cushions off the suite, clean the frame first and then the cushions (using a portable table is good as a work base & saves your back). Whilst doing the cushions start drying the frame with your blower. Then as you add the seat/back cushions in pyramid fashion, they will dry off as you go onto the other chairs/sofas.
Dont take the covers off! If you've got a good kit with good suction, moisture should'nt be a problem

By the way Ray, were you on Fasttrack last year?