Like Jim said it can vary some....and it depends some on if mfr. scales them with limb bolts mostly out, middle, or snugged down.
Loosely speaking, a limb rated 40-on-17" will be ABOUT THAT or 38-39# on a 19.
A limb scaled on a 25" riser will be ABOUT 5 or 6 pounds heavier on a 19" riser.
SATORI limbs I think are rated on a 21" riser......so 40# SATORI limbs might go 41-42 on your 19" riser.
If you buy Trad Tech limbs, the marked weight should be close to what you can hit with the bolts fully turned in on a 19" riser. You can always ask them to test the limb weight on an inhouse Titan III, as I've had a couple of sets from Lancaster that were much lighter than marked.
Price wise, my two favorite limbs from TT are the BM 2.0 wood/glass for moderate cost $150, easy tuning OR the TT RC Wood $430, which are much more expensive but are great limbs in feel and quietness. I personally have never found much success finding a limb that's in between the price points that I liked for price / performance. (Don't waste your money on the BM2.0 Carbon/Wood)
The Uukha EX-1 limbs would be the only one I might consider, but hard to find now they are discontinued.