...apart from all the above...there is no way in hell that you will finish the rest of the hours in one week.
Before an instructor can sign you off solo - of which you still need 7½ hours minimum - they will (legally) have to see you jump through various hoops and excercises - increasing the flight time you need.
By the time you have worked out the legal requirements for coming out here you can have damn near finished doing what you need in the UK.
Trust me - if you are struggling for cash today - coming out here in an attempt to finish off quickly will end in tears.
Please, stay in UK - or ask about going to Spain for waether (of which I know little).
By the way - can I draw your attention to my address in the panel below my user name.