Big D gave a good suggestion with the Harbor Freight trailer but if you plan on traveling any more than a couple of miles to lauch your boat I'd avoid the 8" wheels and move up to the version with the 12" wheels.
You can also look at craigslist for your area for a used small boat trailer. You can often find a servicable trailer for $ 150.00 to $ 200.00. Look for something for a 12 - 14' boat.
You said you aren't handy but I'm betting you could work a ratchet wrench and relocate the bunks so that they will support your kayak. If you buy a bracket and install a keel roller at the rear of the trailer you'll have no trouble pushing your kayak onto the trailer either.
Lastly you can check for a new trailer for a small utility boat at your local motor boat dealer. I found a dealer near me in Harrisburg PA that has galvanized trailers for 12 - 14" boats brand new for $ 599.00. That's a great price for something that is far superior to any of the small trailers marketed for canoes and kayaks.
You could easily build it into a trailer capable of handling 4 or more boats and still not have $ 1000.00 into it.
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