If the OP found Caldwell a "bit of a cost" I'm sure he'll just enjoy seeing the SEB tag.
Although worth every nickel the SEB is somewhat overkill for his use.
I might suggest a rest that I used for years in the field and on benchtops .
They are called Mike's Bulls Bag.In essence it is a large X shaped filled 4 section sandbag.
The rifle sits in between the top two smaller bags and when the bottom two bags are "spread out" it causes the top two bags to squeeze in on your stock.
I used to use the LARGE version which weighed like 40lbs full of sand.It held the rifle so well that it "ate "recoil as well.
I understand that smaller versions are being made under different names now.These type of rests are inexpensive,effective for basic shooting needs and will last for years of use.
If high tech Bennchrest work is needed then I might suggest a SEB or a Farley,but
inexpensive sandbags will meet basic needs.
Have fun
Gord