1. It's not replacement value. It's the amount that she paid for it originally; taxes, etc., all in. Hence the name "depreciation waiver" not replacement.
2. She'll need to have a fracture or complete muscle/ligament tear or she get the usual Minor Injury Treatment Protocol.
Not like the old days before no fault. If she has not "bought" up her coverage she'll get $400 per week for missing work.
3. Generally 2 years to file any lawsuit in Ontario. Up to 6 in certain situations. There is a $37K deduction on any court award.
Bottom line one needs to be quite seriously injured to gain benefits from a civil court action.
PPL wanted low rates so they got low rates (questionable) but crappy insurance coverage.
As for "personnel injury" lawyers aka ambulance chasers, like Diamond & Diamond ("we don't paid till you do") et al; their clients are just fodder.