Hello! I am looking to do my timing chain replacement this weekend, and I hadn't ordered the crankshaft removal tool :(

My stepdad is a welder, and I'm thinking he would be able to fabricate something tomorrow at work, it seems rather simple: just has to have a handle to hold for leverage and attaches where the damper would connect. Does anyone have the dimensions on the crankshaft hub, such as size and spacing of the bolt holes?

Thank you, in advance!