No - stop. Don't, DON'T let's have to put up with yet another round of radar willy-waving. Please.
The ideal scenario would be to have a group of Subject Matter Experts (SMEs) who have appropriate experience of 1) SAR ops, 2) civilian ops, 3) modern aircraft and 4) modern rescue equipment systems. In order to advise in an unbiased fashion they would also have to 5) be independent of any of the bidders in the commercial project that requires their services.
Unfortunately, the very great majority of SMEs who meet requirements 1) to 4) will probably be employed by one of the companies involved in bidding for the project, hence these SMEs would not meet requirement 5) and would therefore be unacceptable to the DfT.
Military SMEs acted as SAR-H advisors primarily because they were independent of any commercial company, and their lack of familiarity with some modern systems was the price that had to be paid for this independence - though this would not prevent a good brain from being able to analyse performance claims vs graphs, or SOPs. Unfortunately there aren't many people available in the UK who meet all the criteria 1) to 5)!
Louis