what year is the Shamrock?
it's easy to find the weight of it:
if it's older, it will have a white factory weight sticker, in the inside of a cabinet door.
if it's newer, it'll have a yellow factory weight sticker, on the outside of the trailer.
both will show what it weighed when it left the factory.
it doesn't include the battery weight, propane weight, water weight, weight of items added by dealer and of course cargo weight.
that truck, with the smaller v-8 and poor rear end ratio, will be marginal with the trailer loaded but it should be o.k.
but you should have better trucks out there to choose from, for a tow vehicle.
that one is a grocery getter. probably doesn't even have the factory tow package with a 7-pin connector.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC