I'd keep my eyes open for a used Cooper in .260, 7mm-08, .308, 6.5-06, .280, or .270.
Another option I would investigate would be a Winchester EW, and put a McMillan Winchester Hunter stock on it.
If building on a $1500 budget, Rem Stainless 700, Brux barrel, Shilen trigger, McMillan Hunter stock in one of the above cartridges.
John