please analyze this deal

[Rocco L.]

SW florida riverview 3+den / 2 ba, 2300 sf under air w pool and hot tub

Offer 145k cash

ARV 225k

Repairs 35k

Taxes 2600/yr

I think I can get the work done in about 8 weeks with my guys and back on the market..

Can I make the den a 4th bedroom?

Wanted to get some feedback on this or to see if there is anything I should factor in that Im not

Any advice is GREATLY appreciated