Not sure where this idea is coming from. The TS that OP is considering is a Wyndham one, which would either be deeded at a particular resort or part of the Wyndham points system. In either case, it wouldn't be used as a particular unit at a particular week every year. If it winds up being points in Wyndham Club Access, it would be a fractional ownership of every unit at every resort that Wyndham has in that pool of timeshare units. Thus, a property inspection would have to cover every one of them and the detailed report would wind up being a multiple volume one that takes up quite a bit of room. I'm not sure what action a buyer would take on the report either; the resort management company has the responsibility to maintain the resorts in a useable condition already for which owners pay them management fees. Given that the sale would at the most accountable be for a single week out of the year at a particular unit, it would be difficult to compel the seller to correct any type of damage since they don't own or manage the unit full time.
Bottom line for me is that property inspections do matter when you are buying a home, but probably not worth the effort for a TS. Instead, you might look to reviews of the particular resort you are interested in to see how it is being maintained combined with your own experience in visiting the resort. What you are really buying is a set of vacation experiences rather than property ownership, particularly with points-based TS systems; any flaws in the property are dealt with in the management of it and don't have much impact on the value of what you purchase. Major systemic flaws would be reflected in the cost of the management fees, as would the quality of the service and the amenities you receive when using the resort; major flaws could result in a need for higher fees, but a property inspection for a TS acquired through the bargain bin on TUG to discover any flaws at all would be a cost well in excess of any potential benefit because of the nature of what a timeshare is and the $500 limit on listings in the bargain bin. I hesitate to even think about what such a property inspection would cost....