Couple of thoughts. For starters, I've had a front mounted hitch on the last three of my trucks. Spotting a trailer in a tight spot off the front of the trunk is almost childs play so you are on the right track going this way.
But keep in mind, the front hitches usually max out at 5-600 lbs hitch weight and if your tongue weight is much higher than that, you may have problems. Also, you can always get an adjustable height hitch for the rear to raise or lower the ball as needed. On my truck, the hitch in the front is lower than the rear which works well since I have a bit of an incline to go up and it raises the rear up some. It probably comes close to scraping on the bottom by the ball, but so far thats never happened.