CanoeistsNear EndOf TripPress Internationalcountry kayak trip. They began the trip last spring in Astoria,Ore.Rep. Arch Moore, R-W. Va., said he plans to be standing on the banks of the Potomac togreet the youths when they arrive.iiSomewhere along the Potom- sac River, two bearded adventurers are paddling their kayak today and wondering whether they' will reach the nation’s capital Wednesday or Thursday.Jim Curnes, 24. of Wheeling,W Va., and John Davidson, 22, of’ Carlisle, Pa., said Sunday they would reach Washingtoneither Wednesday or Thursday! to *nd their 4.000 mile cross-