personally i would go for buisiness licence and radios, as the other users of the radios will also need to take an amatuer radio exam to use them!
Buisiness licence isnt that dear from memory, and radios can be bought quite cheap from the bay of E, if you know what ya looking for.
if your stuck for what to get i could assist you in choosing, i work with radio every day, as a communications tech for the us air force.
the ideal makes would be Motorola, Icom or Kenwood, prices can start from as litlle as £20 depening what you want.
if ya need help message me.
Andy
Amatuer call sign: M0NKR