Having tried through both CAE and L3 I'd reccomend CAE, as it seems to be much more relaxed in terms of the assessments and teaching. Modular is definitely the way to go, as it is less likely to break the bank. You can switch between training providers on the fly(!) and give yourself much more flexibility in how you learn. Do your research and see which ATOs appear to offer the best services for each part of the training process. As a start, I might suggest the usage of CAE for ground school, but not anything sim training related, as their sims, (at least as of mid 2020) were not on their Oxbridge site but instead in Coventry. The PPL/Hour building section is usally abroad, with Phoenix, Arizona being one of their remote training bases.