GenBen corner radius question

Hey, I've had the week off so I've been working like mad on my project. Finished the final trailer weld details and painted it and now it's a completed roller. Got the floor made and tarred (big fun!) and cut both my walls today. Cutting the doors was a bit hairy but not bad.
Here's my question.. some of you are rounding the lower corners on the Generic Benroy for a more period look and I like that. Anybody have a particular radius they used that looks good?
I marked 'em at 2.5" and then 3." and I think 3" looks better.

Here's my question.. some of you are rounding the lower corners on the Generic Benroy for a more period look and I like that. Anybody have a particular radius they used that looks good?
I marked 'em at 2.5" and then 3." and I think 3" looks better.
