I have the xs19 in .22 flavour and its been stripped cleaned up, lubed, new ss spring and guides and a charliedatuna trigger
Its running at 11.6 ft/lbs with very little recoil
rammsbottom's do some good low priced scopes but a 3-9x40 would probably be all you need
if you feel the need to rest the rifle you could fill a bag with sand as it will let the recoil still run
good luck
Brett