I am going to suggest skipping out on the Handy Manny bedding, unless it is very economical. Instead, I would paint the walls and either put up Handy Manny or other Disney character wall clings, or do a mural on the wall with the characters you want.
The reason I say this is because my kids go in and out of character phases so fast. We did my son's room in Pooh & Friends when he was a baby and did a mural on the wall. We moved when he was 2.5 and let him choose. He chose Bob The Builder. A year later, he no longer liked Bob. I was pregnant and we were doing the baby's room, so we let him decide on how he wanted to do his room. We did dinosaurs and 2 years later, he didn't want that anymore.
If you get him a comforter that will go with anything - it is so easy to change the wall decorations. With Bob the Builder, we used the wall clings. With the dinosaurs, we framed a poster and put scrapbook stickers as a border on the wall. I did buy him a dinosaur comforter that I got for 75% off, but wish I hadn't because it would be easier to change his room again. I told ds he is going to have to wait a while before we change the room again.