IF its about learning 6502 then its not hard to run a SED script and convert your version into the official version. Work with what you find easiest and use the computer to do the hard work.
I've done hand coding and those who have will agree, its a education in futility in painful uneeded processing for sadists. Coding sheets are fun but when you can type faster than you can write then they are very annoying.
Now back in early home micro days you had no real choice but to hand code your assembly into machine code and in that fixed coding sheets realy made no difference at all and if anything I found got in the way apart from screen design.
Point is in thsis day and age - impossing and having to be forced into learning TLA's when you can have something meaningful is something realy not needed, but thats another story.
Is this about learning 6502 or learning assembler as they are both seperate area's. 6502 has a nice history of reading and was done back in the time were one chap could invent a CPU, one man could write a application etc etc. Nowadays its not as easy due to size/complexity etcetc.
If you want to teach somebody something then imposing artificial limitations of the days - is that realy needed as a extra level of distraction, we can agree to disagree upon that.