What 54Ball said ... i'll add my two cents worth, thus:
i agree wholeheartedly that if only one longrifle is in your future, you would do well to go with one of Mr. Kibler's guns (i'm saving up my soda cans for one now... might take a while...)
you should get a few books, and i would do this before you buy a kit. i recommend
The Gunsmith of Grenville County, by Peter Alexander.
https://www.trackofthewolf.com/Categories/PartDetail.aspx/303/1/BOOK-GGC
Additionally, i would commend to your reading
Recreating the American Longrifle, by Buchele
et al.
https://www.trackofthewolf.com/Categories/PartDetail.aspx/303/2/BOOK-RAL
there are several other books which will be useful, but these two will give you a good idea of what's going on. the are (i admit) a bit 'spendy,' but i think it comes down to a matter of cost efficiency: they will more than save their purchase price in parts you don't ruin (as well as time you don't have to spend waiting for the new parts to arrive... as to the time in purgatory for the bad language, i'll let those more knowledgeable in theology cover that).
other thoughts:
if you are going to use your own tools, i would avoid buying 'sets' of anything; rather, buy only what you need. sets have an interesting way of having only two of the five ever leave the nice cased box, and the others simply collecting dust.
If you are going to buy your own tools: Some are gunbuilding specific, such as wee bitty chisels for inletting lockplates (which i made from piano wire) and some are not, such as the quarter inch chisel with the bend in the handle: useful for getting into tight places in the barrel channel, and in the inside of drawers. Either way, figure out how to get them neurosurgery sharp. My father (who should have known better) was convinced that a tool was perfectly sharp when it left the factory. His tools were always dull, and i have a scar on my left hand to show for it. Get your edges well honed and well stropped ... getting bloodstains out of figured maple is just about impossible (don't ask me how i know).
As far as technique - "sneak up on it" is probably the best advice i've been given ... works for me. Also, don't ever hesitate to put the thing down and ask a question on this forum (which is, to my mind, the best resource).
Best of luck with your build.
end pictures ... we love pictures.
(psst- should we tell him how addictive building is, or should we let him fall into the trap unwarned?) insert 'mad scientist' laugh here