well tbh I can't see why not having a Canberra squad competing in NSWPL whichever Div.
PL3 as most know keep travelling to Bathurst for Mariner games - 3hr each way.
Same travel time from Syd to Canbra.

As has been quoted though, Sth Coast should be competing in CF instead better imo - but the last years whilst my 2nd boy was in YL Sthn Branch struggled having a team in the age group, infact last season U16's were out completely come comp start, one reason due to players from afar not making training every week therefore numbers were low as - can you believe it some were as far as Young I was told so completely understand that situation for parents. Then to travel to Sydney week in week out another hurdle I suppose.
So, for eg, Nowra to Canbra 2 1/2hrs drive, not too bad if competing in CF.

Yes all these distances add strain but something needs to be done helping to grow other areas and expose the talent.