Fun ahead! I love wrenching and torqing 17+mm nuts and bolts, thats my world. Especially if you can take new, NOS or refurbished parts off your shelf.
I spent countless times driving to and from the sandblaster or powdercoater while the car was away to get endless parts restored.
Hours at the screen hunting parts on ebay end up in tons of parcels arriving at my home, countless orders at specialised vw-dealers summed up in a quite large inventory of parts. Not one part of the bus that wasn't replaced, refurbished or in any other way been treated to be in perfect shape for reassembly.
You really can go crazy while doing this.
Creative Engineering's weedeater "narrowedbeam": tight and snug fit, perfect in every aspect (sorry for the dust...):