I use a padded bag with sections inside for fuses and zip up clear sections for screws and tools made by Naish.

I haven't tried one yet, but padded keyboard gig bags are cheap and the right size and shape.

They start at about $30 each and come in 49, 61, 72 and 88-key sizes ranging from about 85cm to 140cm.

You'd have sort out some internal dividers or straps to organise your gear. Some bags have velcro dividers but I think they're generally the expensive ones.

Other alternatives could be cheap guitar or gun padded bags.

PS I've added little webbing handles to all my foil covers. It makes it easy to carry a heap of foils and masts and tails and whatever with no risk of dropping them.

The only serious damage I have ever done to a foil is years ago when I dropped a brand new foil, in its bag, onto the road. It landed on a gap in the bag and smashed the tip. The plus side is I learned very early on how to repair damaged foils.

Rifle bags work well

I bought a roller golf bag on amazon for $60 and have made multiple trips with it as well as kept it in my van with my foils masts etc in it. Works great for travel and keeping all my $#!T in order everyday.