Talking about possibilities - this summer
2 guys that live at the park I'm at have an old Class A with a small car. They came here last winter, wanting to spend some time on the beach and went out to get parttime jobs. Within a week they were working full time at a large condo complex doing housekeeping. One got promoted shortly thereafter to managing some of the housekeepers, the other moved to the front desk. Both moves got them promotions - and now both are on the front desk. No, not glamourous or high paying, but more than cover their monthly rent (less than $400 - which covers the space, cable, water, sewer, free wifi and use of all the park's amenities and being able to participate in all the park's activities. Only extra - electricity. They intended to stay a short time and move on - but love it here. They drive the rv at least once a month to keep it in roadworthy condition - and the little car gets them the 4 miles to and from work and to shop - with a great mpg.
A college student came here to visit his grandparents. They got him a workamping job at the park. They helped him purchase a very old Class A. He worked the grounds 4 days a week (paid for the site and gave him some cash) and he went into town and got a job at a restaurant waiting tables. Made big money there during the busy summer months and I'm told all that got banked for college.
So yes, there are other ways to do things. And you don't have to workamp (look at the first example) as you'll have a vehicle - and there are jobs out there - just not necessarily high paying ones - but the service industry is almost always hiring (hotels, motels, restaurants, etc) if you're willing to consider those.
Now, for many people I wouldn't even suggest what many of us are telling you to consider. But this is part of your dream - and you might be able to swing starting to live your dream on a smaller scale - if you think it through. If you keep putting money into rent (house or apt) and buying everything to put in it, etc, you'll probably never be saving to do this.
So, think long and hard on what you need to do - and if you can save to get something to start doing it. TT's are less expensive - especially used ones, but if you have to buy a newer truck, it might be less to look at used Class C's and A's and an older small, towable car. Just think about it. Oh, and with this lifestyle, if you do nothing but save enough money to put aside for the possiblity of having to pull out cuz you aren't happy somewhere - you're living on wheels - you don't lose your home - just where you might park it.