Well, putting the tower down should be really easy. Not going to fit with the tower up. Dropping the nose will usually drop you a bit depending on the position of the highest point of the boat vs the axle.
Low profile tires aren't made in trailer tries as far as I know, so you'd have to use a car tire, which is not ideal. Smaller rims will gain you, but only 1/2 inch per reduced rim size. I had to deflate and inflate my tires each time in the garage, but I set it up so I could control the pressure of all 4 tires while the trailer was rolling slowly and could refill all from one inflation point. Takes about 5 minutes to drop 4 65psi trailer tires down to 5psi and then get them back up to 65psi. Did that dozens of times this summer. Takes me longer to put on the cover if I left it outside.