We have a 440, which had two of your stated issues. Not a really big deal to fix them if you're handy and so inclined.
The non-skid on the bow was applied after the hull came out of the mold. It's a light blue in color. I think it was subsequently painted, not gelcoated. Took me a week to sand, mask and paint ours with Interlux perfection. About $300 in materials. Not a deal killer in my opinion.
Investigate what's under that crack in cockpit floor. Might be an obstruction and not all that big a deal to repair permanently.
The area beneath the windscreen is a recurring maintenance spot...especially in cool damp climates where moisture condenses on the aluminum window frames and drips onto the wood. If the boat isn't kept heated or air conditioned it's just a fact of life. I've redone ours twice. Re -varnish and then cover the area. Not a big deal. A big deal is leaking side windows which is a common problem on other brands of Taiwan boats.
Throw a carpet on the floor. I have't seen the parque gap problem on our boat...but not really a sign of neglect. Seems a so-what issue in the big scheme of things.
Look under the area of the crack in the swim platform. Probably a support bracket under it. Likely the platform was dinged backing into a slip and cracked around the bracket. Not uncommon. Easy enough to remove and have repaired. Grind off the raised non-skid if necessary and apply one of the generic products.
You could have a diamond in the rough staring you in the face. I wouldn't dismiss this boat.
