JJR,
Well spotted on the forks they are from a Pro Raider.
With regard to the frame I thought it was an Expert, but maybe it is a Junior?
It has 1" OD top tube, 1 3/8" OD bottom tube.
17" top tube length or 18 1/4" measured from centre of head tube to centre of seat tube
It has western Hutch lettering on brake ridge with the letters all touching
Serial No. is 0643665 on inside left dropout with drilled out vent holes in rear loop only
Still had the original '4130 Chromemoly Made in USA' decal at the bottom of the seat tube.
Couple of pics before it went to the powdercoaters: