Great to hear you are going to rebuild the original carb -they were designed to be rebuilt over and over. I would avoid anything at TSC -they have very little tractor parts nowadays and what they do sell is often junk. Years ago they used to sell the TISCO product line but no longer. The TISCO carb rebuild kits come in two sizes -a basic, low budget kit, and a more complete, more expensive kit. I found a supplier that has a complete comprehensive kit like the one sold here only it has a few mote parts and is about $10 cheaper. It comes with a new brass float AND venturi. Avoid the plastic parts and the rubber-tipped float needles. Note too some kits put their own parts in like the petcock, never original, in place of the NPT drain plug. It matters who you buy from.