Getting ridiculous bids on a jack/jill BR remodel so I'm wondering if I shouldn't piece the job out and just hire for specific work. The situation isn't bad just need new finishes and such. No rotten dry wall/flooring, pretty typical stuff on a mid 90s house in Highlands Ranch.

Things I want to do...

Demo
Install vanity, faucets, mix up supply lines
Install toilet
Install little things (towel rack/rod, etc)
Paint



Things I don't want to screw up (will hire out)...

Floor tile
Shower tile
Refinish older cast bathtub
Relocate sink supply lines (plumber) for vanity from floor to wall
Shower fixture, drain


Anyone have any thoughts, suggestions?

The bids are ranging from $6500 - $8700 and I suspect there is some "mark up" on materials because no one seems to want to be transparent on those costs. The last guy said he budgets X amount on materials, buys from Home Depot, and if he goes over adds the overage. Another company said we'd have to pick from their design studio only.