UK - fantastic track - as others have stated GREAT atmosphere!!!
i too mix all sorts of 1/32 with the slot cars
i start way too many ' big ' projects - get distracted and move on to more
as for planes in 1/32 - yes there are plenty - especially the ww2 warbirds
cheaper than the b 17, if you wish to scratch a bomber - is the guillows b25 mitchell (or catalina flying boat) - balsa kits but some good vac parts - and very good potential if you 'skin' with thin sheet balsa or even styrene - i have plans for some dc-3 conversions for a late '50s civil airliner diorama to go with my slot world
Aurora back in the day also did a 1/32 plastic b25 kit which could be motorized for 'line' flying, or built as static - still highly sought after today and quite a nice kit
i think a 1/32 revell bristol beaufighter would look great in your hangar - or the 1/32 mosquito ... those are still quite cheap on ebay
but its your world and clearly you know exactly how you wish to create it!! keep building whatever suites your fancy! i like all the rest am thoroughly enjoying seeing it develop
fantastic stuff and thanks for sharing
cheers, Ron