a guy on Pinside posted this interesting image where he overlaid a spiderman layout over the startrek. So if you really wanted a spiderman but missed out here is a possible pin for you.
He said this
Replace Green Goblin standups with short laneway... keep left orbit and spinner but bring them down a couple inches further... keep left side ramp exactly... enlarge center ramp... replace Sandman toy with Enterprise... swap right ramp and Doc Oc... shift lanes and rotate pops to suit new sightlines... keep right orbit and upper right flipper exactly... keep lane behind upper right flipper but change exit to alternate design already thought up for SM... don't touch anything else in the bottom third of the playfield... done!