Here's what I did.
I purchased a used Rem 700 BDL LH in 338 Win Mag w/a Leuy 3 X 9 VX-II for $495.00 with the intent of using it as a donor action for a custom 338 something.
Timing was such that I ordered a custom rifle
on another action that I had which precluded any great expence on the REM LH Action. As a 338 WM it shot especially well but it wasn't sexy like a 338 RUM.
I bought a REM sporter 338 RUM new take off barrel for something like $40 had it fitted by a local smith with a Tubbs lug and Holland brake installed all for about $235.00 not including the Holland Brake as it came off of the WinMag barrel but cost me $160.00 to have it installed on the win mag.
I greately modified the BDL stock, using resin/devcon/jbweld. Turned it into a single shot configuration. $25.00 for the mag plate insert.
Pillar and skim bedded it myself.
This project was fun and kept me busy until the custom rifle
arrived. It turns out to be a pretty fair shooting personalized factory rifle. Shoots a 250gr bullet at just over 3000 FPS accurately for 8 or 900 yd shooting with potential for more. Have shot the 250s close to 3100 but don't think its needed.
I'd recommend a barrel heavier than a sporter weight and the little one heats up pretty fast. The first two shots don't do much but the third one seems to heat as much as the first two. And I have no patience.......
Also as you can swap barrels without having to go to a smith w/the savages I'd be very careful and get some go/no go gages.
If I were you I'd do my homework and have at it.