The Taylor tuned guns are very smooth as they are slicked up by cody conagher who is a great gunsmith in the sass realm. I think you would be happier with an Uberti 1873 reproduction tuned rifle in 38 as opposed to the yellowboy 1866 the 73 is alot easier to clean in my opinion.
As far as pistols I really like the 4 3/4 length barrels not too long and not too short. Since you already have the brass and the dillon 650 you are already ahead of the game in that area.
Remember we use lead cast bullets RNFP work the best and you can buy about 1,000 bullets for about $60.
The best piece of advice is you are available we will be shooting this sunday down in Arcadia at the OKC gun club starting at 10:00 am http://www.okcgunclub.org/cowboy/map.html
The other advice I have is take your time getting what you want and slowly buy your stuff if you can afford to buy just one or two quality items a month in 6 months you will have everything you need and not break the bank getting into this sport.
However as you slowly get into the sport and show up for club shoots people will loan you guns and gear to use as you aquire your stuff so dont be afraid and think you have to wait to start shooting that is far from the truth you could start at anytime.
You will want to buy a high quality holster set which generally run $350-500 for the holsters DONT SKIMP ON THESE I cant stress enough about having good leather.
The rifle will run you about $1,000-$1,500 for a good 73 already slicked up. The pistols will run about $900 for the pair for some talyor ubertis but if you look on the sass wire http://sassnet.com/forums/index.php?showforum=14 people are always selling cowboy gear and guns on the classifieds.
Hope this helps you out
If you let me know you are coming down can make sure to walk you thru some stages and let you send some rounds down range
