So I did it; other than the

and

this was the only Joecon set that appealed to me. Found a US seller on ebay who wanted £52.00 for the set of three (at least £30 cheaper than the next cheapest seller). Didn't want to take the chance of missing out so pulled the trigger. At least I can console myself with the fact that it is possibly cheaper (or at least easier) than finding original mint

,

, and

.
Some people are selling the

for around $30 each which is pretty reasonable, but the shipping costs quoted are a bit steep, so I'll maybe email a few and see if they are correct (could just be ebays calculator wildly over estimating).
For anyone else looking at ebay, the prices are all over the place for this stuff; from 'very reasonable' to 'I think somebodies been on the crack pipe'.
Now all I need to do is decide what to sell to repair the damage to my Paypal balance

.