Most ready made kits of hwy peg parts are for Harley with 1 1/4" guards (will not work on Valk, unless you wrap the guard with heavy rubber, which is unsat). You need 1 1/8" clamps (Kuryakyn Quick Clamps). Years ago, I had to buy my own parts from Kuryakyn, and put them together myself to mount to bike. They may now sell kits with 1 1/8" clamps . Kits always give you a bit of break on price from buying all parts separately.
The cheapest hwy peg is a 1 1/8" quick clamps to clevis to pegs right to the outer sweep of the engine guards at 3 and 9 oclock. Do not buy the large ISO pegs, get the small ISO pegs or Duallys with male mounts. You really do not need offsets (unless very tall), most guys just fold them back on themselves anyway, and all they do is move the peg position farther out (wider). Just beware that they are outboard of everything on the bike, and if not folded up, can snap off on the garage or shed door frame if you're not careful (or even in a simple tip over even if folded up). I have this setup on one Valk, and I have to be careful my short legs do not rest my calves on the rear corners of the valve covers, which get hot after riding awhile. Also, they must be mounted to the guards angled back, not out at 90 degrees; they look crooked, but your legs are like this V, not this H.
These are what I'm talking about, though they only come with 1 1/4" clamps.
https://www.westendmotorsports.com/kuryakyn-iso-highway-pegs-small-large-dually-or-wing-clamps-for-1-25-bars-4-peg-choices-8032-8033-7992-4451/Here they are with 1 1/4" or 1" clamps, but no 1 1/8".
https://www.kuryakyn.com/products/4024/engine-guard-or-frame-mount-footpegs?gclid=EAIaIQobChMIiOjzvqHT6gIV5wiICR14TgSEEAkYAyABEgI38vD_BwE Almost no one ever orders from Kuryakyn themselves as they always charge full MSRP, and all of their thousands of vendors are cheaper (Amazon may be your best bet for price). But, if you can't find a 1 1/8" premade kit for sale, you might call them direct and ask them to sell you a kit with the right clamps for a kit price. Or just order the 1) pegs, 2) clevis, and Quick clamps.
But the Kuryakyn 4050 kits are the best there is. The clamps mount below on the guard support bar and are so strong you can stand on them (superior to quick clamps). And they fold up so if the bike goes over in a fall or slide, they don't get hit by the ground like pegs mounted on the outer sweep of the engine guards. Only thing is for interstate, it's best to cut the scoops off (you don't need them for anything) to get them mounted where they belong. Not an issue for std and tourer.
https://www.amazon.com/Kuryakyn-4050-Cruise-Dually-ISO-Pegs/dp/B000GZQIN2 
