I've been doing nothing but MDR gap assessments, GSPR's & MDR STED's and templates since 2017. Most companies have the typical gaps as with the new MDR requirements i.e. CMR, PSUR, PCMF, labelling updates, clinical, etc. so it would really depend on how organised the company documents and current MDD TF are in order to do a gap assessment and convert to MDR format. A gap assessment would also depend on familiarity with specific types of devices i.e. software, electronic, MR compatible, implant, sterile, reusable, classification, etc. I could likely complete a GSPR in 1-2 days if the docs are organised and have an up-to-date ERC. The GSPR template I use lists applicable ER's so it is easy to cross reference. I am an RA Consultant with over 19 years experience with my own LLC so I base my fees either on Project Basis i.e. flat rate for completion or an hourly rate for long and short term contracts. Please note, it takes many hours to put the templates together so for most Consultants a project rate would likely be implemented, rather than simply be charged at an hourly rate.