Longman Pronunciation Dictionary transcription for those words favor separating /b/ (or /p/) and /r/ so "represent" is transcribed as /ˌrep.rɪ.ˈzent/.
Though at the beginning of the book, Prof. Wells also noted that there's no pause between syllable divisors when pronouncing words, this transcription however makes the /r/ voiced (due to the unaspirated /p/) which, from some popular dictionaries such as Oxford, I don't hear any voice for it.
Suppose I hear it correctly, i.e. the /r/ in "represent" is pronounced voiceless, then should the transcription change to /ˌrepr.ɪ.ˈzent/ or even slightly better /ˌre.ˌprɪ.ˈzent/?
Note: I don't have much experience and the tool to analyze the formants of sounds, so I can only resort to my ears to predict if the sound /r/ is voiced or voiceless.