i have seen your install on the digital dash its a nice clean set up and i have some ideas of going to something similar however i enjoy analog displays. long term i intend to go to a holographic HUD im running a GPS speedo thats a HUD and i am working on getting rpm, egt, and boost up there as well plus a data logging function as well. nice on the 2205 and 2507 i like those duplex alloys they do well in situations that would otherwise need more expensive alloys. inco 625 is easy to weld if you can do 316L behaves basically the same except you never get a clean puddle and its kinda slower. just treat every weld like its gotta be xray quality and you will be fine. the sheet i got is scrap from a friend you can get small scraps for around 7-11$ a pound all you need after that to make a manifold is a slip roller and a tig welder.

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1985 300D om617: 8mm M pump 175cc 5200rpm, holset he221w @ 30psi, large A2W ic, compounds on the way.
KD9AFT
A&P