Hi FDI, welcome to the forum,good to know another Yorkshire man loving PP,we are from Rotherham!
We did this in 2005 and found things easy.After buying an old property in Pollenca we wanted an english/mallorcan style house.
We got the keys and furnished over 2 or 3 visits. We stayed in a hotel in the town for a week while we assembled the essentials.
A visit to Ikea,I think is a must.We bought the large metal frame bedsteads from there and the look a little spanish! all basics,crockery,cookware,cutlery glasses,bedding,lighting small stuff like tables,cupboards are all perfectly ok.You can have the large stuff delivered,check the del.days.
We got a lot of other things locally because we wanted some old/second/hand mallorcan style,older chairs,dressers,occ tables.
Sofas are good at Ikea but also at a store in Pollenca.
We had some authentic looking tables,chairs,free standing candlesticks and wineracks made by a blacksmith in Pollenca.
So come and lookaround its not daunting.
Ive never been to Al Campo or Leroy Merlin but others will advise you.
Take your time and enjoy it as we did,get beds first and take it from there.
Ask any specifics, they are a helpful bunch here.