They do not do the pre-1898 thing in the UK. A gun is a gun and you need a certificate to take possession if it shoots anything but "obsolete" ammo. a 16 ga 2&1/2" center fire cartridge gun no matter the age is not obsolete in the UK.

Nothing wrong at all in looking for the most cost effective way to get the gun you. Best to know the law though.

http://www.bertramandco.com/
Booking African hunts, firearms import services

Here for the meltdowns