Dude ...if SER demands like coach increase or speed increase in SWR, then surely Amaravati will become the next Coromandel and Goa exp......
And 10 SL coaches are sufficient, yes but if reduced then serious complications will happen.
Post slip removal and LHBfication, the rake composition should be
Loco.SLRD.Gen.Gen.S1.S2.S3.S4.S5.S6.S7.S8.S9.S10.B1.B2.B3.B4.B5.A1.SLR.