Oh but R-Mix might work for scratchiness. There are some automatic restoration settings that you could try that might detect and lessen that type of scratchy sound. You said RX earlier and I asked if you meant Izotope RX. If you have that program it will have far superior restoration tools so that would be something to try.
 

thanks brother mike yes the lavalier mic is prone to give off some sort of noise and you ar right its just what I thought also about the gateing I probably would not like the sound of the gate whn using with tracking.
 
 

Am I right in thinking that most of the unwanted noise is down to using a lavalier (lapel) mic that gets knocked, rubs against clothing etc.? How much of a problem is unwanted noise from other people?
 
Are any of he recordings on he web? If so, where? HAving a lisen may help us suggest solutions.
 
In the meantime, a couple of options to consider might be using overhead mics (hang them like they often do in theatres, one or more as needed to cover the area required). Another might be a highly directional "shotgun" mic (of the kind often used with camcorders) on a stand pointed at him from a distance away. If the stand has a camera-mount kind of wivel then it's possible to "track" the speaker as they mover around.
 
A third option might be a mic on a long hand-held "fishpole" boom of the kind used in film and broadcasting, though you'd need someone to carry it and point it etc. and they can be visually obtrusive.
 
If close-micing is necessary (and it's the best way to go if possible) then really it's necessary to persuade him to understand that no matter whether someone's preaching, singing or making a speech they are also making a performance that is being recorded, and a necessary part of the skill of a performer is good mic technique. Then either a headset mic and care when wiping his face or hand-held mic or one on a stand and get him to stand still and use it properly.