Welcome to Paddleducks..... The home of paddle steamer modelling enthusiasts from around the world.
I take you mean the down tubes are too big in diameter Mick?I have quite a few various size styrene tubes here, mostly offcuts, so if you let me know what diameter and length you need I'll see if I have something suitable....RegardsEddy
Mick!If you tell me what size you want I can turn down and drill out some PVC for you?All the bestStuart