T_M, your first post on this thread stated that
'If I started to learn to fly in 1 to 2 months and it took me a year'.
Therefore where has the 7 years come from as stated in your latest post?.
We assumed therefore that you intended doing the PPL (or NPL) in a year, hence the advice to train as cheap as possible then do a simple tail dragger conversion in a Moth.
Just go ahead and complete your dream, do your PPL in the Moth.
PS if you want to buy a Tiger Moth let me know, I have a friend who is selling a nice one for £30k.