New to forum - looking to do a refit on a 78 23'

[quietstorm]

Ok guys. Been looking at the site for years but I'm new to the forum. Great site here. I have a 1978 23' in Jupiter Florida that I've had for about 6 years. Just put a Yamaha 250 HPDI on it a few years ago. Getting ready for a complete refit(soft spots in transom, cap repair, floor). I'm sure all the answers are here but you may be able to give me some quick ones just through experience. A few questions to start.
-What kind of transom brackets seem to work best and how much are they?
-Bad spots in the cap - Remove cap or repair in place?
-Best manufacturer for fuel tank?

I'm sure the questions will keep coming but I'd like to get a tank and bracket ordered before i dig in. I think i have a line on a sweet console with a helm pod already.

Thanks for your help