Hi David,
I ran across your request last week and finally got on here. I am currently building a 1/9 Scale (36.5" long) Riva Aquarams Special Revived Stearling Plans. I bought the plans on E-bay from great_plans in Canada. I just looked today and it is on there again. Its about $20.00 including shipping. For an extra cost he will blow them to the scale you want. Here is the E-Bay I.D. # 200291519365.
The plans are well done and the parts so far are fitting pretty well.
Hope this works for you.
John