Removable neck on Palatino VE-500

I hope this doesn't come across as rude, but the two sensible options IMHO in this situation are;

- Find a hard case that fits your Palatino as it is and don't bother modding it.

- Sell the Palatino and buy a good quality used EUB that already has a removable neck or is more compact.

Remember to factor in excess baggage charges for oversize items if applicable, and how often you fly.
Airline Restrictions Master List

Any modding you attempt isn't going to add any value, and if it's done badly may leave you with firewood.