I am afraid you are probably right Juro. Best bet might be a not too big pontoon in order to still be able to kick some bit in position. Real moving with oars and/or a small Minn Kota. So although Scaddens Skykomish Sunrise looks very tempting it will probably be a smaller one like the Colorado River by Trout Unlimited. Just have to find out how that one behaves with flippers.
Thanks for your reply.