heres what i have found out so far ,from dedicated perusal of the internet.Dumoulin $3884.00 aus dollars imp 98 action
german golmatic$5146.00 a true 98 action
wif hein$2704.00round action 98,m70 hybrid
$3259.00standard square bridge
$3467.00 machined square brdige
this is all australian dollars ,other alternatives are p14 $200 and up, cz new $1200.00 for a complete new rifle to use , or try to find a brevex ,about 5 to 6000 aus dollars ,on a existing rifle . i think Montana ph action is investment cast, which i dont like ,i prefer a machined action, but of course are more expensive .the german Golmatic is the one i like best ,with original Mauser 98 bolt shroud and looks the way a true big game bolt should look like ,the model 70type bolt shroud just doesnt look right to me,my opinion.i think Golmatic is what Rigby use for their BGR.