As Sir GC offered, I'd be taking him up on that. It's one of those jobs where you can never have enough hands, nor enough brain capacity to coordinate those flailing limbs.
It might even be worthwhile getting a duplicate set of the letters made, ready to fix any unfortunate mistakes that may occur. Although more expensive, it'll mean less time in the shop if the unfortunate happens.
Lastly, plan for the time you think you'll need to complete this job, and triple it - and add an extra hour. It's not for the impatient
