Your best center would be another forte.
If yours are forte (not forte II) then your next best choice would be an academy.
If you really have forte II's then
I might look for a KLF C-7
I don't think that any of the RF (RC-x) line would make for a good center for any forte...
You can change grill cloth, GroomLake/Area51 is our resident expert on such things.
All just my opinion, others should chime in to correct my errors...
Noah
Heritage 2.2-channel:
Pair of 1986 La Scala LS-BL, SW-12 II (Oak,) SW-15 II (Oak)
"Extended Heritage" HT 6.1:
One pair of year 2000 Chorus II's (OO,) One pair of 1993 Chorus II's (Clear Oak,) One pair of 1989 Chorus (OO)
One pair 1995 Quartet's (OO,) One 1994 Academy Center (OO,) One KLF C7 (Mahogany) and One somewhat unnecessary Sub-12
Reference HT 5.2:
RF-63's(BLK,) RF-7's(CHERRY,) RF-5's (BLK,) RC-64(BLK,) RS-7's, RSW-12, Sub-12
GF system - kg4's, kg 1.2's and now kg 2.5's in zone 2
Waiting:
a pair 1967 Vertical Cornwall II's (C-0-W-15,) a pair 1977 Cornwall's (CD-BR,) a pair 1977 Heresy's (HD-BR,)
A Quad (4) consecutively numbered H-SM (Heresy Slant Monitors) in very Raw Birch (!)
3 KP-250's, a pair of 1978 Heresy (HD-BB,) a pair of HI's, a pair of KP-301's,one lone KP-201 and one lone KP-480X
FOR SALE:
A minty Pair of RB-5 (Med.Oak,) Velodyne 1512, Yamaha Receiver: RX-V2500, Onkyo Integra Power Amp M-5060, a pair of forte II's (FB,)
Also enough Heresy and Cornwall and La Scala Parts to restore most anything you have...