1949 jeepster vj3-6

Hello fellow Jeepsters... I am having a hell of a time find parts. My current hang up is finding a 6 volt 50# oil sending unit. Everything I find has the wrong bolt size for the block. Any suggestions??? Thanks

New here. Joined because I just acquired a 1949 Jeepster VJ 3–6, with L-head 148 six-cyl. engine. My Jeepster and I were born in Toledo, Ohio, two years apart and about two miles apart. I am no car restoration expert by any means, so I hope to find some expertise in this forum...