So this is not car related what so ever but I need somebody that knows body works help as I have never spread any bondo/filler before in my life. I am restoring a 1942 Grob inc. NS-18 vertical bandsaw for my shop. Currently I am disassembling and stripping off all the layers of old paint off of it. The main frame is a welded plate construction and is going to need a little filler to smooth out some of the seams before I start painting it back up. What kind of filler would be best/easiest for me to work with being a complete noob to this? Below are a couple pics of the saw currently.