Do you make custom shafts for customers already?
What is your time worth?
Factor is cost of equipment both new and when repairs or upgraded are required.
Your cues are worth
1- what you think they are worth
2- what people will pay for them.
I charge an amount that I feel my cues are worth,
If I never sell even 1, it doesn't matter to me as cue making is a hobby, not my full time gig.
If you want to be taken seriously, you shouldn't raise or lower prices dramatically
Start your cues at a price that will be competitive for a custom cue, not an entry level import.
My cues are not inexpensive and I have a hard time keeping up.
I guess it all depends on the local economy as well,
But I never advise on giving stuff away.
My opinion only