Banjo - resources needed

[TallDad71]

Does anyone have a good link about where to get started with building banjos?

Have build loads of acoustics - electric guitars but a client just asked if I could build them a Banjo. My answer is “I don’t know, but I will find out”

Does anyone have a go to source for plans, techniques, pitfalls etc etc

[TallDad71]

Please ignore thread, customer changed their mind.