Has anyone tried adapting a commercial rotisserie for roasting beans?

Firstly, I'm a newbie here and so pleased to have found this great community.

In the process of shopping for a decent used convection oven I came across a fairly large commercial roaster at a very good price. I thought I might fashion a basket to contain the beans and roast them that way. Am I wasting my time trying to do this? Any advice would be appreciated.

Lastly, I'm going to attempt to show you a picture of the rotisserie I'm considering:

Thanks in advance!

Jack