Follow up from my post!!
Thank you to everyone who helped out. Breckendridge was gorgeous this time of year but freaking cold! lol. So we ended up taking the Aline from Denver Airport then the Pegasus to Frisco transfer center and then the city bus to our hotel in Breckenridge. It was actually very easy but did add probably another hour travel time then the time we would have spent on a Peak1 shuttle. Overall though booking on the pegasus I think would be my recommendation, it was comfortable and fast. Only spent $80 total for two people and that's including a $20 Lyft from my hotel on the way back to Frisco. Rather than the $300 it would have cost me for two people round trip on Peak1. Regarding bags, I can see how sometimes they would be strict but as long as it's not extremely oversized, I don't see an issue with a roller suitcase or anything.

Hello, myself and my daughter are flying in on Saturday and looking to find the cheapest option to get from Denver to Breckinridge. It looks like we should take the train from airport to denver station then the Bustang to Frisco, is that the best option?I really don't want to pay $300 round trip for a shuttle.