i have been able to price everything i need at around $200

I was just looking for some advice, not for you to turn wrenches for me. I am well capable of doing the work myself.
I am just not that familiar with the newer stuff, I have been out of the game for a long time.
I do not need nor do i want to replace my brakes, My shifters and break levers are separate.

I just like Shimano better, My old 1990 GT shifts better and smoother than this 2015 sram equipped bike.

if the 8 gear cassette (already shimano) that came with the bike is an issue for some of you a newer one is only around $50



this is what i was able to price online,
Shimano Deore 9-Speed Mountain Bicycle Rear Derailleur - RD-M51 $38.53
Shimano Deore 9 Speed Mountain Bicycle Front Derailleur - FD-M591 $27.45
Shimano CN-HG53 9-speed Bicycle Chain $16.72
Shimano Deore SL-M590 3x9 Speed Trigger Shifters Rapid Fire Gear Shifter with Inner Shift Cables $52.99
Shimano M361 Hybrid Crankset (Black) $35.78
Shimano BB-UN26 Square taper Bottom Bracket (68x113-mm) $42.20

Total $213.67


I was only looking for some advice, not doing this for the last 20- years i'm not sure if this is all compatible with each other.

I was not looking to defend myself when asking a normal question as a new member on a bike forum.

I am only looking for useful advice, I do not want to buy a new bike so that doesn't help either.


so if you have some useful advice for me please let me know, thanks.