A sportster has a reputation as being a "girls bike" but I disagree. The sportster with the 1200 ci motor has plenty of power, and isn't terrible to ride. BUT, it does have a small gas tank and isn't very comfortable for longer rides. One lady in our club has one, she rides the breakfast rides on it, but those are usually less than 80 miles. If you can save a little more up, I'd suggest either a Dyna low rider, or maybe wide glide, but you should understand that you should take a motorcycle safety course first, so that you can use their bike to learn on, before you climb on a bigger Harley. The Vrod is not an easy bike to learn on, but if you think it fits you, and feels right to you, then by all means, go for one. I don't care for the Vrod myself, but that's just my personal taste, not because of any problem with the bike. Spend a little time sitting on some of the different models, remember too that a dyna wideglide weighs about 500 lbs empty, so you need to be able to put both feet flat on the ground to balance properly, which is true on any bike. Also, there are a million ways to customize a sporster to your own personal taste and needs. The 883 CI sporster is discontinued, but the 1200 ci sporster is still very much a part of the harley line. It's the better motor anyway. Remeber that you can lower a sporster very easily too if you need it lower for your size.
whatever you decide, ride safe.
Remember that in the end, there are only two kinds of riders, Those who have been knocked down, and those who are going to be knocked down.
in 41 years of riding, I've owned 26 bikes, from the mini bike I built at age 10, to dirt bikes to cruisers. The last 5 have all been Harley's, including my newest, an '07 Ultra classic