Based on what you may be willing to spend - my recommendation as the first pick among in-lines would be from one of the TC models but not their least expensive model i.e. the Impact. The irons on that particular model suck. IMHO, the TCs are built nice, great designs, equipped with better irons sights and offer better ergonomics.
I have also zeroed and shot Traditions Pursuit models using both irons and optics and both grouped from 2-3in on average at 100 yards. I should also mention that I wasn't looking for precision just minute of deer vitals at that range.
Personally, I have the TC Triumph (Bone Collector) that comes equipped with Williams Firesights. The rifle is accurate out to 100yds using irons only. The iron sights also exhibit adequate build quality and should perform well in low light conditions - provided one's eyesight is reasonably healthy enough.
I also very much like the TC Encore Pro Hunter model and the sights installed on that rifle.
Needless to mention, each brand and/or individual ML rifle will show a strong preference or otherwise for a particular brand of powder/pellets + bullet combo as well as the type of 209 primer used. Consequently, a bit of range time will be required to determine the approrpiate loads.
Personally, I use Hodgdon's Triple 777 Magnum pellets (2 pellets of 50gr each) with 300gr of Hornady SST sabots or 250gr of TC Superglide Shockwaves. For primers, Remington Kleenbore 209s work very well with the 777 powder, well at least, it does in my case.
It is imperative that MLs must be cleaned ASAP due to the corrosive used. The process would usually involve something as simple as pouring boiling water down the barrel. Personally, I use bore foam for MLs (similar to the type used for cleaning the bore of a shotgun).....let the bbl sit for a while and then patch out the muck. Once clean, I run a patch lightly coated with a few drops of CLP prior to storage.....need to mention here, any trace of gun oil and/or CLP inside the bore must be completely wiped off and the bbl swabbed dry prior to taking out the ML to the range or to the field.
Whatever brand/model you may choose - ensure that it is a break action (or toggle action) type with a Breech Plug that is simply removable by hand (with no tools required in the process). Those features highly facilitate operation, troubleshooting and maintenance either at the range or in the field. Better quality set of irons will be another plus since the controlled hunts generally do not require long distance shooting.
Low powered optics such as 2-7x33mm or something a bit lower will be excellent for acquiring moving or close range targets much more rapidly.
FWIW, it is indeed a great way to extend the deer season and fun to hunt with. During the 2010 Controlled Hunt, I recall a guy (at HuntOntario site), who brought down 4 deer consecutively in the same field just pausing in between shots to reload his TC Encore.