I have been looking at the John Deere 5000 series tractors too. I have asked myself this same question.. I talked to a guy who bought a 5045d, and he said it have plenty of pulling power, and such.. I don't think he had a loader on it though. The man I talked to had a farm, and used it to bale hay, plow, disc, use scraper blade, and use a rotary cutter. It is on youtube, as easyrider65.. I test drove a 5045D, and a 5055E with loader.. If the 5045E doesn't have enough power, then the 5055E would be as high as you would need to go.. There is a video on youtube from tractorhouse I believe with a 5045E with loader, they demonstrate it's functioning.. It seems it would likely be ok.. I talked to a guy that had a 5045E, and asked him if it had enough pulling power, he said, that it pulled over 20,000 lbs up a considerable hill, and slope.. He said, it seemed to struggle a little bit, but it had the power.. He said he was suprised that it pull that much weight up hill..