Although my training on powered aircraft was before EASA and JAR etc., I believe that going from gliding to SLMG and then adding Group A was a more logical and affordable opion than the more obvious route. At the time, cost wasn't the main concern, although very important. I was simply seeing if I could go a bit further, nibbling a little more aviation cake.
Since doing anything in minimum hours is unlikely, I would counsel choosing a place where you can feel comfortable with the people, for it's the bits that you don't pay for that can make a huge difference to your learning. Osmosis is a wonderful thing.
A friend trained at Enstone and was very happy he did; way back when, I went to Rufforth which gave me some excuse for going oop north and experiencing somewhere different from my usual area. I did it in chunks, a week or a few days at a time and it worked out well.
But as you have discovered, ask a question on here and you will receive as many view as there are active forumites. Make a decision, enjoy yourself and come and play.