What kind of Tama is it? and how big is the church?
I would recommend Evans heads because to me they have a better feel and are warmer sounding than Remo's.
If the kit is not pro line, and you want a mellow sound, I recommend hydraulic heads on batter side, with resonant on the reso side. That is a very good combination. the heads are 2 ply with oil between the plys. People say that they really kill the volume of the toms, but I find that to not be as true as you would think. That will give you a very nice feel off the toms with nice resonance. These heads are very durable.
Another I would look at is going with a coated g2 with g1's on the reso side. The g2 is also a 2 ply head and is louder than the hydraulics, but its more of a natural undampened sound. the G1 is thicker than the reso, so that should make up for some pitch volume.
The coated g2's are a little warmer than the clear g2's, the clears are still good.
Good Luck & God Bless.