[RichH]

Have T37 hull #423
Teak decks no problem if maintained.. underlayment is of small squares of ply, etc. so that if you get a leak it will be local to the small square of underlayment, unlike full sheet under-layment.
Stancheons subject to leakage with rot underneath.
Look for rot in the bowsprit; look carefully at the bowsprit cranse collar for evidence of cold working / embrittlement -eg. micro-cracks. If to be replaced, have one fabricated - eMail me for proper design.
Prop shaft is probably substandard metal.... survey should pull/extract shaft for corrosion inspection.... you dont have to pull the whole thing, just uncouple and slide back far enough to see the area that was riding in the packing gland.
Some of wiring will be non-marine grade (not tinned).
Avoid original LAM sails.... very bad ... worthless!!!! if Lam sails negotiate LARGE deduct.
Survey should include a VERY DETAILED (aloft) survey of the rigging to discover embrittlement, etc.
Uncover and do detailed analysis/inspection of chainplates.
Otherwise a T37 is built like a tank, not subject to the typical Taiwanese foibles. Definitely not a "leakey teakey".
Its a buyers market !!!!