DWG is a hern barel and you pay a mark up but they could be closer to home and that save you on shipping
grey atar sent me a email back saying if i bore and or sleeve a barrle from then it is at my own risk
PC / HC can be fun but i sure your seeing a pattern here it is fun and rewarding to biuld a cariage to your own design as well as long as it safe
i have simple wood working tools at this time and sold all my laths and other medal working machines so i find parts all over the internet and from suppliers here and biuld my own cariages from what i can find made or can still make