Ah you one of those DIY people.
Me,I just pay others to haul my supplies from jita and any new fancy ships the new multibuy thingy works great when I need multiple replacements ,as any good player I overstock on ammo and I have an alt in Jita and Amarr to buy my things.
If you do it right logistics should take you 1-2 hours every 2 weeks maybe depends on your activity volume of supplies you need and how well you judge your needs.