Instructing or towing
Tail wheel differences will cost about 800 and guarantee some hours,instructing 8000 and no guarantees of any students.No brainer.
I would also look again at ryan air before you hit that magic 30(out of 22 collegues who got in there over last 7 years all but 1 under 30) in Europe this age does seem to be all or end all with 0 hour cadets.