Scamp suspension

I am looking at a Scamp 1971 with no top...it is made to look like a convertible....I am wondering if the thing will twist in two without a top for rigidity. How rigid are these frames?I'm not a hot rodder but would like to make sure it won't break in two or sag in the middle. Thanks for your help.
If they just cut the top off without any frame connecters or other mods, RUN. That car was never designed to be a convertible.