I did mine part time at Bournemouth Flying Club. I think they now only do IRs at their commercial division - but I may be wrong.
Several weekends (both days) then a final intensive week.
Would suggest the last few sessions, the 170A and the CAAFU flight test are done in the same week if possible.
CAAFU only do weekdays
AFAIK, so some last minute practice Mon-Tue, 170A on Wednesday, CAAFU on Thursday, beers on Friday is a good plan