Desinge tips for funky tube

Hi! A Finnish guy here, I wanted a can for my kimber kds9c tfs and looked at the only cans here are from b&t and cost almost 700€ so I came to the logical conclusion that I can "make" one for less moneys. So the plan is to buy a Angstadt Arms HUB from silencer shop and as far as I know just hubs arent considerd suppressor parts so they can ship it to me. Gonna print a bafflestack to go on the end of that and call it a day. Do you have any tips for me or recomendations? Thanks!