Thats not bad. On my sierra, I have so far replaced:
2x inner sills;
2x outer sills;
1 rear quarter
Half the floor pan, and done several patches to the transmission tunnel

I need to still
Replace the boot floor
Replace both rear chassis legs
Replace the rear panel
I am also re doing the sills
I am making a brand new floor pan
I am going to drill out the bulkhead rail to get to weld some holes
Im removing the lower bulkhead to re weld some patches
I'm removing the inner wings to sand blast in side the chassis legs
Removing the crossmember to put a new one in
Etc etc. Depends what attachment you have to the car imo. Mine's sentimental.