starting my 1972 20' seacfrat

[dandub20]

to remove the gunnel cap i was thinking of bolting 2 by 4s across the gunnel and using a come along to lift it up, but am still scratching my head on how to free it at the transom and where the rear boxes are glued to transom. was thinking of taking my dremel and cuttin along the corner where it is blued to transom. is that ok?