In general there are very few instructors who can teach LAPL only, unless you have found the school with both of them.
The hours stated for a LAPL are the minimum and not typical of what you will have to do to get a LAPL. I have never seen anyone get there in the minimum hours especially if the training is eratic.The effort required to get a PPL is very little different, but the conversion of a LAPL to a PPL will cost you a lot more money.
If you want a PPL stick with it, but look at other schools where instructors may not be an issue.