Sorry for the loss of your husband - that must be so heartbreaking.
We decided to go for the 5th wheel for several reasons. My husband feels it'll be easier for me to hitch up than a "regular" trailer as it's not very comfortable for me to bend over. I plan to take it out on my own far more than when Dirk will be with me.
In April I rented a 34' motorhome for a month and drove down to the Sacramento area and back up along 101. Absolutely loved parts of it, but really wished I had a trailer and vehicle. I went with the motorhome rental as none of our vehicles could have towed the few trailers I found for rent. It was rather hairy at times driving that monster along the roads (esp the small bit of Hwy 1 I got on and quickly left the next day).
At one campsite the folks next to me had a Class B van that they had to unhook and hook back up every time they left camp. Kind of a pain, but it worked for them. Least they could go sightseeing - I had to rely on a friend for that and that only happened in two places during my month long trip.
You'll need to decide how you want to use it. Just go to one place and hang out? A small motorhome would work (a friend of mine does that just about every weekend in the summer and goes to her sister's cabin, so a motorhome works best for her). Don't mind unhooking/hooking back up when you sightsee? A Class B would work. Want to hang out in the campground for some time as well as sightsee (and not unhook and stow everything away inside)? Then a trailer and towing vehicle will work for you.
Also, at most of the campgrounds I was at, if I needed help, it was right next door to me. At more than one I asked for help and the guy next to me was there in a flash helping out. It was great. I never felt unsafe. I just did the usual precautions like I do at home - be aware of your surroundings and act confident.
As an aside - I was just flabbergasted by how many wives told me they were amazed I was traveling by myself and how they never drove their Class C (or A) themselves, nor did they know how to hook everything up. I wonder if the reactions would have been different if I had a vehicle and trailer.
You can also go visit other trailers and talk to their owners about what it's like to hitch up and travel in them. We visited 4 in the Seattle area and it was a huge learning experience. Very worthwhile, to say the least.
Good luck with your decision.