i know what you mean by not trusting anyone to take care of them. i only trust my boyfriend to properly take care of my piggies because he sees what i do with them every single day. (and he knows the wrath he'll have to face if he doesn't treat them like princesses)
a while ago i had a neighbor of mine watch one of my piggies. unfortunately, she didn't know much about guinea pigs, so i bought a small 3-ring binder and filled it with several pages of information; food, dos and don'ts, illnesses/symptoms, noises, hygiene, floor time, number to my pig's vet, etc. i know i may have came off as a high strung, worry-wart, but i felt at ease knowing the pigsitter had loads of information to rely on if she couldn't get a hold of me.
if you end up taking your piggies with you, you can keep them in a dog kennel during the car ride and stick them in a cage once you arrive to your destination.
before you go on your trip, make sure to stick them in the kennel or carrier of your choice often so they can get used to it.
some pigs can handle travel, other piggies don't. a few months ago i drove all the way from pennyslvania down to texas. my guinea pig was in her carrier for 20 hours or so; she survived and she showed no signs of stress throughout the entire trip.
i got my second pig a few weeks after moving. she wasn't the best with traveling, but she has grown used to it. the first time i kennel-traveled her, my experienced pig acted like it was no big deal, while my newer pig stayed perfectly still and looked terrified.
after a few more trips in my car, my newer pig has grown used to it and shows no signs of stress or fear.
what i do is i keep the kennel opened and out on the floor, so when my piggies are having floor time, they can freely roam in and out of the kennel as they please. this helps animals get used to the carrier; instead of associating it with 'scary car rides,' they'll think nothing of it since they have been exposed to it so much.
as for the kennel itself: i lay a couple of layers of fleece and towels down and i attach a water bottle to the opening of the kennel. i don't put food bowls in the carrier anymore, because my pigs repeatedly knock it over. instead, give them some veggies here and there while they're in it. you may notice your pigs burrowing under layers of fleece, this is fine, it makes them feel safer and more comfortable.
if you do take them, make sure the temperature in the car is not too hot or cold. rule of thumb, if it's too hot or cold for you, then it is for your pigs. keep in mind they are in an enclosed kennel, so if it's hot in the car, then it's doubly hot in the kennel.
i think once you have introduced the kennel to them, you should practice driving them around or carrying them around the house with them inside the kennel. if they are stressed, take it slow. if they show absolutely NO signs of growing comfortable with traveling, then look into getting a pigsitter.
if you can tell they are getting better and better with each practice travel you take, then chances are it'll be safe to bring them with you!