FYI, I bought my red pitch from Karl Fischer. It doesn't adhere as well as black bitumen pitch, but it smells a lot less, cleanup is easier (dissolves off in meths) and it doesn't get everywhere.
(But I still have the pitch around for some things too).
Delrin & brass punches are useful to have, particularly if you want to move the metal around without putting dents in that then need to be planished out.
Make sure your posture is good for this too.
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