Hi Dave,
Well, I guess my best advice and reason for not working on my Tiger is "don't get too caught up in the details, cause you can always find something else about it that needs fixed or made more accurate". The screens for example. I researched them, tried to find out how the screening was attached to the frames (still not sure, I assume tack welded to the underside), how the frames attached to the hull (still not sure, there are no visible screws or bolts, and I have read they might be wired to the grates underneath or again, tack welded, but I couldn't just GLUE them on, could I???), found out about the double mesh and worked to find suitable material, the list goes on. By then my modeling ADD had kicked in, I lost interest and I moved on to something else. Theres so much that CAN be done to it, you have to ask yourself how much WILL you do to it. You seem to have a much better attention span than I, so it may not be an issue.