Sounds too small
Base Curb Weight + Cargo Weight + Passenger Weight equals Gross Vehicle Weight (GVW). GVW must not exceed GVWR obtained from Safety Compliance Cert. Label on the left front door. GVW + Loaded Trailer Weight equals Gross Combination Weight (GCW). GCW must not exceed GCWR. A Mac 22 weighs 2000 lbs, the trailer about 700 lbs, add more for the motor, fuel, food, rum, stove, radios, TV, sleeping bags, toilet, water, ice, wine, BBQ, PFD's, beer, anchors, chain, GPS, flashlights, night vision device, binoculars, horn, dingy, flair kit, first aid kit, etc. If KayakDan is right, you have exceeded your GCVR by about two or three times, voiding your warranty, and putting your liability at risk in the event on an accident. Furthermore, the hardest part of towing is getting the boat out of the water and up the launch ramp. The first time I went out in my Mac 25, my 3 speed Dodge Van could not do it. It took a larger pick-up with lower gearing to get the van and boat up the ramp. A transmission with a "granny gear", four wheel drive with Hi-Low transfer case, or auto-matic transmission makes this much easier. Last, consider the type of hitch you want. A receiver type hitch that bolts to the frame is stronger than a bumper hitch, and gives you more options to the height of the ball and is far enough behind the vehicle to allow you to turn much sharper. One other thing is to consider the axle ratio. I got a performance axle for my Ford Explorer which added 1000 lbs to the towing capacity. Before that I towed the Mac 25 with and 1950 1 Ton Chevy flat bed I bought for $500, the bed was like having a dock behind the truck. My current boat is A Mac 26M which I towed 1200 miles home from the factory with a 2003 Ford F-250 with the Diesel motor and auto transmission. No problems except for the California speed limit of 55 mph for vehicles with trailers. In Oregon we can go 65 mph, in Washington 70 mph.