Isnt it better to build a pre amp using OP AMps and an AMP to be put after the pre amp.
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A word of advice though. I made quite a few amps during my engg days, experimenting with textbook circuits and trying to push to the limits. The biggest enemy I found was oscillations when I was pushing too hard and/or noise.
OP-AMP powered amps were better with less noise and better stability, but I think the main factor was that the quality of op-amps in our lab was much better than the simple MOSFET or NPN etc., transistors.
I had hard time struggling with Class A amps etc., but op-amp circuits were easier.
Since you are from Jalandhar, I really do not know wether you can source good quality MOSFET's etc., from Ludhiana or Jalandhar. Bangalore is a different beast altogether. You can get the best parts there, but in Ludhiana I guess you are confined to gur mandi.
The other problem is availability of analysis equipment. In college I had oscilloscopes to see wether it turned out right or wrong. If I assembled an amp today I wouldn't know where it went wrong.