I would suggest you do not use west systems. West systems starts to set up fairly quickly, (30 minutes or so). this may not give you enough time to get everything on the wing and into the bag. If you have no choice then get the slowest hardener you can for the resin. There is nothing worse than having to rush to get it all in the bag because the resin is curing. If the resin starts to set up too soon, excess will not bleed through the peel ply into the breather. The result will be one heavy wing.

I use MGS resin, the slowest hardener will allow 4-5 hours working time.

Ed S