Nope - a MA will have 4" of deck above the RUB RAIL and a baitwell in the port aft corner plus wide gunnels - bow rails can be changed, although I have never seen an SF with a recessed one
Transom should measure appox 20" from the deep vee to the top if its a 20 - I just measured mine
what kind of trailer and its value on the used market, leaves you with hull value - hull value depending on condition 1500 to 4000 (with T Top), lots of varience here as to condition so hard to tell.