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There is only one deciding factor in coffee: How it tastes to you. After 15 years of roasting coffee with various (more-or-less expensive) roasting machines I cannot imagine roasting in a pot, a dog bowl or with a heat gun or pop-corn popper. However, I have not tried any of these for many years and have no idea how the coffee would taste. Therefore, I cannot recommend one way or the other. For you to decide you probably will need to try a dedicated roaster and see how you enjoy the process and how the coffee tastes to you.
When you speak of "peeled" beans I presume you mean beans that have already had the chaff removed like those from Dieckmann. I have tried some of those coffees and found them to taste defective, however here again, it is your taste that is important, not my opinion.
If you watch ebay you may find a small hot-air roaster for sale quite inexpensively. This would be a possibility for you to "test the water" and find out if there is a difference and if it is worth it to you.
Good luck and let us know how things turn out for you.