Yeah I would talk to the doctor about what things he would and wouldn't allow. I agree completely with the suggestion of pool exercises. I've used them myself with great success in speeding up recovery times while minimizing pain and discomfort. Perhaps some sort of gradual progressive program would be great. Starting with floating pool bicycling - floating in the water, with one of those foam things under your arms while doing a bicycling motion with your legs, then when you can do that, perhaps advancing to light pool walking, then on to light land based bicycling, then perhaps light pool jogging, etc. Hopefully you see the idea here. I would definitely get clearance from the doc before you start this though...there are several tendons involved in the knee and what might be okay for one, may not be okay for another. Then increase your consumption of salads and vegetables, maintain a high protein intake, and cut overall calories to a level that is appropriate for your activity levels. Remember you have to overeat by about 3500 calories to gain a pound of fat, so if you are reasonable with your diet you really shouldn't gain much if any. I know you have some specific goals to reach by July, but be flexible with that. Doing too much too soon could worsen the injury and put you months behind schedule. Also along with that, you need to eat to heal, don't get crazy with cutting calories or carbs. Be reasonable, be active as tolerated, and be patient and you will be fine. Good luck with this, these hurt like crazy.