If they now get Independence and remain in the EU, then 3 questions

A) The Border, will we rebuild Hadrians Wall or Antonines Wall?
1) Borders, when we rebuild Hadrians Wall or Antonines Wall, will we split the costs?
2) How will it be rebuilt when all the reliable Poles et al have been sent back?
3) Will it be built on time or late which due to unforeseen problems makes the final bill twice as much as the initial quote with "homegrown" builders?

D) Just asking like!

The cost would be engalnds. I dont think the scots would want a border. Remember its just the english wanting to keep the nig nogs out.