Interested in ideas for a non-plaster solution to add grade crossing(s) over 2 separate parallel pieces of Kato straight track with approximately .25" in between the inner edges of the Unitrack road bed. Bought the Woodland product but didn't think, even with the supplied spacers, it fit well and would still need something to bridge the space in between the 2 tracks. Any thoughts on Blair Line? A little concerned of wood warpage?? The BLMA plastic ones seem to be best? Thought about purchasing an extra set, regardless of manufacturer to use as planks over caulk to fill in space in between the inner edges of the plastic roadbed. Also, initially was going to do just a painted road however looks like only option is to mate with gradual decline with a gravel road instead. ???