Sanding sealer is always a tricky one to get right when the finish coat is a paint of some type, some do not like paint at all...
The best way to test a sealed bit of scrap wood with the paint your about to use and see if u get a reaction.
I've always used this
direct from
http://www.cornwallmodelboats.co.ukIt is one that dose not react with
acrylic, sprays, air brushed tinlets, enamels or varnishes.
As to painting a model.. if the glass is already in, then i'm sorry to say you will be masking up a lot of windows, however if the windows are not in yet then its a simple case of masking and spraying/painting the model and the frames then fixing the glass in place at the very end.
Methods of attaching glass to painted/varnished surfaces that work are...
Double sided sticky tape, hot glue gun or the one i use is using an epoxy resin the 5 mins stuff such as evo stick or araldite, and apply around the frames with a PIN (small amounts in small spots will stick a window in easy.)
Do not use SUPERGLUE sadly although superglue works really well as sicking anything to pretty much anything else, it does however 'stain' when it dries with its fumes, they leave a white mark around the surrounding areas and with glazing of any form its a pain as the marks are really noticeable and will ruin the work.
Hope it helps