This is a stretch but if you really like a Finnlight buy it!! You won't be sorry. But as one person pointed out you could be sorry selling 2 guns.

Keep the 243 and buy the Finnlight in 7m-08 or 260. This way you will still have your varmint gun and you will have your new hunting rifle as well.
An option also is, just recently I have seen a few used Finnlights on the Campfire and this would keep the upgrade finances more practical.

A 7m-08 Finnlight is one awesome hunting machine.