The Mossberg 144 LSA is a target rifle with a 26" heavy barrel. It is a bolt action chambered for the 22 Short, Long and Long Rifle. The Blue Book values are:
The Remington 540X has a 26" heavy barrel, a target stock and no sights. It is a single shot bolt action. The Blue Book values are:
I can not locate and have never heard of a Mauser Model 12014. The average post war commercial model has a walnut stock and uses a Model 98 type square bridge action . Average Blue Book values are:
Add 20% to 30% to the Blue Book values for retail prices.
I hope this helps you,