@Alex*****
you could get a single entry tourist visa in Vientiane, enter they country, get stamped in for 60 days, then you could get a re-entry permit (either at the immigration office or at the airport when you fly out) so that when you returned you'd be stamped in until the original 60 day expiration date AND you could extend that by 30 days if you needed to as well.
A single re-entry permit is 1000baht at the immigration office.